Updated on 2025/09/16

写真a

 
TERADA Takahiro
 
Organization
Kobayashi-Maskawa Institute for the Origin of Particles and the Universe (KMI) Designated Assistant Professor
Title
Designated Assistant Professor

Research Interests 10

  1. Swampland conjectures

  2. Supergravity

  3. Nonlinear realization of supersymmetry

  4. Dark energy

  5. Cosmological gravitino problem

  6. Pre-inflationary cosmology

  7. (P)reheating of the Universe

  8. Cosmic inflation

  9. Gravitational waves induced by primordial curvature perturbations

  10. Primordial black hole

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Research Areas 1

  1. Natural Science / Theoretical studies related to particle-, nuclear-, cosmic ray and astro-physics  / Particle physics, cosmology, and gravity

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Professional Memberships 1

  1. Japan Particle and Nuclear Theory Forum

    2013

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Awards 1

  1. Particle Physics Medal: Young Scientist Award in Theoretical Particle Physics

    2017.9   Japan Particle and Nuclear Theory Forum   Nonthermal gravitino production after large field inflation

    Yohei Ema, Kyohei Mukaida, Kazunori Nakayama, Takahiro Terada

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Papers 45

  1. Induced gravitational waves probing primordial black hole dark matter with the memory burden effect Invited Reviewed

    Phys.Rev.D     2025.3

  2. Resurgence in Lorentzian quantum cosmology: No-boundary saddles and resummation of quantum gravity corrections around tunneling saddle points

    Masazumi Honda, Hiroki Matsui, Kazumasa Okabayashi, Takahiro Terada

    Phys.Rev.D   Vol. 110 ( 8 ) page： 083508 - 083508   2024.10

    　More details

    Publishing type：Research paper (scientific journal)  

    DOI： 10.1103/PhysRevD.110.083508

    arXiv

  3. Quintessential interpretation of the evolving dark energy in light of DESI observations Open Access

    Yuichiro TADA, Takahiro Terada

    Phys.Rev.D   Vol. 109 ( 12 )   2024.6

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1103/PhysRevD.109.L121305

    Web of Science

    Scopus

    arXiv

  4. Dissipative genesis of the inflationary universe Open Access

    Matsui, Hiroki, Papageorgiou, Alexandros, Takahashi, Fuminobu, Takahiro Terada

    Phys.Rev.D   Vol. 109 ( 10 )   2024.5

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1103/PhysRevD.109.L101303

    arXiv

  5. Dissipative emergence of inflation from a quasicyclic universe Open Access

    Matsui, Hiroki, Papageorgiou, Alexandros, Takahashi, Fuminobu, Takahiro Terada

    Phys.Rev.D   Vol. 109 ( 10 ) page： 103523 - 103523   2024.5

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1103/PhysRevD.109.103523

    arXiv

  6. Detected stochastic gravitational waves and subsolar-mass primordial black holes Open Access

    Keisuke Inomata, Kazunori Kohri, Takahiro Terada

    Phys.Rev.D   Vol. 109 ( 6 ) page： 063506 - 063506   2024.3

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1103/PhysRevD.109.063506

    arXiv

  7. Cancellation of quantum corrections on the soft curvature perturbations Open Access

    Yuichiro TADA, Takahiro Terada, Junsei Tokuda

    JHEP   Vol. 01 ( 1 ) page： 105 - 105   2024.1

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1007/JHEP01(2024)105

    Open Access

    Web of Science

    Scopus

    arXiv

  8. Induced gravitational waves with kination era for recent pulsar timing array signals Open Access

    Harigaya, Keisuke, Keisuke Inomata, Takahiro Terada

    Phys.Rev.D   Vol. 108 ( 12 ) page： 123538 - 123538   2023.12

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1103/PhysRevD.108.123538

    arXiv

  9. Gravitational wave production from axion rotations right after a transition to kination Open Access

    Harigaya, Keisuke, Keisuke Inomata, Terada, Takahiro

    Phys.Rev.D   Vol. 108 ( 8 )   2023.10

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1103/PhysRevD.108.L081303

    Open Access

    arXiv

  10. Inflationary α-attractor models with singular derivative of potential Open Access

    Kubota, Kei-ichiro, Matsui, Hiroki, Terada, Takahiro

    JCAP   Vol. 07   page： 011 - 011   2023.7

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1088/1475-7516/2023/07/011

    arXiv

  11. Threshold of primordial black hole formation against velocity dispersion in matter-dominated era Open Access

    Harada, Tomohiro, Kohri, Kazunori, Sasaki, Misao, Terada, Takahiro, Yoo, Chul-Moon

    JCAP   Vol. 02 ( 2 ) page： 038 - 038   2023.2

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1088/1475-7516/2023/02/038

    Web of Science

    Scopus

    arXiv

  12. Constrained superfields in dynamical background Open Access

    Aoki, Shuntaro, Takahiro Terada

    JHEP   Vol. 02   page： 177 - 177   2022.2

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1007/JHEP02(2022)177

    Open Access

    arXiv

  13. Massless preheating and electroweak vacuum metastability Open Access

    Kost, Jeff, Shin, Chang Sub, Terada, Takahiro

    Phys.Rev.D   Vol. 105 ( 4 ) page： 043508 - 043508   2022.2

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1103/PhysRevD.105.043508

    Open Access

    arXiv

  14. Minimal supergravity inflation without slow gravitino Open Access

    Terada, Takahiro

    Phys.Rev.D   Vol. 103 ( 12 ) page： 125022 - 125022   2021.6

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1103/PhysRevD.103.125022

    Open Access

    arXiv

  15. Solar-Mass Primordial Black Holes Explain NANOGrav Hint of Gravitational Waves Open Access

    Kohri, Kazunori, Takahiro Terada

    Phys.Lett.B   Vol. 813   page： 136040 - 136040   2021.2

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.physletb.2020.136040

    Open Access

    arXiv

  16. Swampland Constraints on No-Boundary Quantum Cosmology Open Access

    Hiroki Matsui, Terada, Takahiro

    JHEP   Vol. 10   page： 162 - 162   2020.10

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1007/JHEP10(2020)162

    Open Access

    arXiv

  17. Gravitational Wave Production right after a Primordial Black Hole Evaporation Open Access

    Inomata, Keisuke, Kawasaki, Masahiro, Mukaida, Kyohei, Terada, Takahiro, Yanagida, Tsutomu T.

    Phys.Rev.D   Vol. 101 ( 12 ) page： 123533 - 123533   2020.6

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1103/PhysRevD.101.123533

    arXiv

  18. Gauge Independence of Induced Gravitational Waves Open Access

    Inomata, Keisuke, Terada, Takahiro

    Phys.Rev.D   Vol. 101 ( 2 ) page： 023523 - 023523   2020.1

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1103/PhysRevD.101.023523

    arXiv

  19. Trans-Planckian censorship and single-field inflaton potential Open Access

    Kadota, Kenji, Shin, Chang Sub, Terada, Takahiro, Tumurtushaa, Gansukh

    JCAP   Vol. 01 ( 01 ) page： 008 - 008   2020.1

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1088/1475-7516/2020/01/008

    arXiv

  20. Clustering of primordial black holes formed in a matter-dominated epoch Open Access

    Matsubara, Takahiko, Terada, Takahiro, Kohri, Kazunori, Yokoyama, Shuichiro

    Phys.Rev.D   Vol. 100 ( 12 ) page： 123544 - 123544   2019.12

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1103/PhysRevD.100.123544

    Web of Science

    Scopus

    arXiv

  21. Gravitational Waves Induced by Scalar Perturbations during a Gradual Transition from an Early Matter Era to the Radiation Era Open Access

    Inomata, Keisuke, Kohri, Kazunori, Nakama, Tomohiro, Terada, Takahiro

    JCAP   Vol. 10   page： 071 - 071   2019.10

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1088/1475-7516/2019/10/071

    arXiv

  22. Enhancement of Gravitational Waves Induced by Scalar Perturbations due to a Sudden Transition from an Early Matter Era to the Radiation Era Open Access

    Keisuke Inomata, Kohri, Kazunori, Nakama, Tomohiro, Terada, Takahiro

    Phys.Rev.D   Vol. 100   page： 043532 - 043532   2019.8

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1103/PhysRevD.108.049901

    arXiv

  23. Non-singular bouncing cosmology with positive spatial curvature and flat scalar potential Open Access

    Matsui, Hiroki, Takahashi, Fuminobu, Takahiro Terada

    Phys.Lett.B   Vol. 795   page： 152 - 159   2019.8

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.physletb.2019.06.013

    Open Access

    arXiv

  24. Prospective constraints on the primordial black hole abundance from the stochastic gravitational-wave backgrounds produced by coalescing events and curvature perturbations Open Access

    Wang, Sai, Terada, Takahiro, Kohri, Kazunori

    Phys.Rev.D   Vol. 99 ( 10 ) page： 103531 - 103531   2019.5

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1103/PhysRevD.99.103531

    arXiv

  25. Primordial Black Hole Dark Matter and LIGO/Virgo Merger Rate from Inflation with Running Spectral Indices: Formation in the Matter- and/or Radiation-Dominated Universe Open Access

    Kohri, Kazunori, Takahiro Terada

    Class.Quant.Grav.   Vol. 35 ( 23 ) page： 235017 - 235017   2018.11

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1088/1361-6382/aaea18

    arXiv

  26. Unitarity constraint on the Kähler curvature Open Access

    Ema, Yohei, Kitano, Ryuichiro, Terada, Takahiro

    JHEP   Vol. 09   page： 075 - 075   2018.9

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1007/JHEP09(2018)075

    Open Access

    arXiv

  27. Semianalytic calculation of gravitational wave spectrum nonlinearly induced from primordial curvature perturbations Open Access

    Kohri, Kazunori, Terada, Takahiro

    Phys.Rev.D   Vol. 97 ( 12 ) page： 123532 - 123532   2018.6

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1103/PhysRevD.97.123532

    arXiv

  28. Gravitino problem in inflation driven by inflaton-polonyi Kähler coupling Open Access

    Hasegawa, Fuminori, Nakayama, Kazunori, Takahiro Terada, Yamada, Yusuke

    Phys.Lett.B   Vol. 777   page： 270 - 274   2018.2

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.physletb.2017.12.038

    Open Access

    arXiv

  29. Gravitino Problem in Minimal Supergravity Inflation Open Access

    Hasegawa, Fuminori, Mukaida, Kyohei, Nakayama, Kazunori, Takahiro Terada, Yamada, Yusuke

    Phys.Lett.B   Vol. 767   page： 392 - 397   2017.4

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.physletb.2017.02.030

    Open Access

    arXiv

  30. Curvaton as dark matter with secondary inflation Open Access

    Gong, Jinn-Ouk, Kitajima, Naoya, Terada, Takahiro

    JCAP   Vol. 03   page： 053 - 053   2017.3

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1088/1475-7516/2017/03/053

    arXiv

  31. Reinterpretation of the Starobinsky model Open Access

    Asaka, Takehiko, Iso, Satoshi, Kawai, Hikaru, Kohri, Kazunori, Noumi, Toshifumi, Takahiro Terada

    PTEP   Vol. 2016 ( 12 )   2016.12

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1093/ptep/ptw161

    Open Access

    arXiv

  32. Nonthermal Gravitino Production after Large Field Inflation Open Access

    Ema, Yohei, Mukaida, Kyohei, Nakayama, Kazunori, Terada, Takahiro

    JHEP   Vol. 11   page： 184 - 184   2016.11

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1007/JHEP11(2016)184

    Open Access

    arXiv

  33. Generalized Pole Inflation: Hilltop, Natural, and Chaotic Inflationary Attractors Open Access

    Terada, Takahiro

    Phys.Lett.B   Vol. 760   page： 674 - 680   2016.9

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.physletb.2016.07.058

    Open Access

    arXiv

  34. On SUSY Restoration in Single-Superfield Inflationary Models of Supergravity Open Access

    Ketov, Sergei V., Terada, Takahiro

    Eur.Phys.J.C   Vol. 76 ( 8 ) page： 438 - 438   2016.8

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1140/epjc/s10052-016-4283-6

    Open Access

    arXiv

  35. Testing ATLAS Z+MET Excess with LHC Run 2 Open Access

    Lu, Xiaochuan, Shirai, Satoshi, Terada, Takahiro

    JHEP   Vol. 05   page： 108 - 108   2016.5

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1007/JHEP05(2016)108

    Open Access

    arXiv

  36. Structure of Kähler potential for D-term inflationary attractor models Open Access

    Nakayama, Kazunori, Saikawa, Ken'ichi, Terada, Takahiro, Yamaguchi, Masahide

    JHEP   Vol. 05   page： 067 - 067   2016.5

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1007/JHEP05(2016)067

    Open Access

    arXiv

  37. Single-Superfield Helical-Phase Inflation Open Access

    Ketov, Sergei V., Terada, Takahiro

    Phys.Lett.B   Vol. 752   page： 108 - 112   2016.1

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.physletb.2015.11.039

    Open Access

    arXiv

  38. ATLAS $Z$ Excess in Minimal Supersymmetric Standard Model Open Access

    Lu, Xiaochuan, Shirai, Satoshi, Terada, Takahiro

    JHEP   Vol. 09   page： 204 - 204   2015.9

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1007/JHEP09(2015)204

    Open Access

    arXiv

  39. Reheating processes after Starobinsky inflation in old-minimal supergravity Open Access

    Terada, Takahiro, Watanabe, Yuki, Yamada, Yusuke, Yokoyama, Jun'ichi

    JHEP   Vol. 02   page： 105 - 105   2015.2

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1007/JHEP02(2015)105

    Open Access

    arXiv

  40. Generic Scalar Potentials for Inflation in Supergravity with a Single Chiral Superfield Open Access

    Ketov, Sergei V., Terada, Takahiro

    JHEP   Vol. 12   page： 062 - 062   2014.12

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1007/JHEP12(2014)062

    Open Access

    arXiv

  41. Inflation in supergravity with a single chiral superfield Open Access

    Ketov, Sergei V., Terada, Takahiro

    Phys.Lett.B   Vol. 736   page： 272 - 277   2014.9

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.physletb.2014.07.036

    Open Access

    arXiv

  42. Complexified Starobinsky Inflation in Supergravity in the Light of Recent BICEP2 Result Open Access

    Hamaguchi, Koichi, Moroi, Takeo, Terada, Takahiro

    Phys.Lett.B   Vol. 733   page： 305 - 308   2014.6

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1016/j.physletb.2014.05.006

    Open Access

    arXiv

  43. Old-minimal supergravity models of inflation

    Ketov, Sergei V., Terada, Takahiro

    JHEP   Vol. 12   page： 040 - 040   2013

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1007/JHEP12(2013)040

    arXiv

  44. New Actions for Modified Gravity and Supergravity Open Access

    Ketov, Sergei V., Terada, Takahiro

    JHEP   Vol. 07   page： 127 - 127   2013

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1007/JHEP07(2013)127

    arXiv

  45. Scalar Decay into Gravitinos in the Presence of D-term SUSY Breaking Open Access

    Endo, Motoi, Hamaguchi, Koichi, Terada, Takahiro

    Phys.Rev.D   Vol. 86   page： 083543 - 083543   2012

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    Publishing type：Research paper (scientific journal)  

    DOI： 10.1103/PhysRevD.86.083543

    arXiv

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MISC 6

  1. The International Linear Collider: Report to Snowmass 2021

    Alexander Aryshev, Ties Behnke, Mikael Berggren, James Brau, Nathaniel Craig, Ayres Freitas, Frank Gaede, Spencer Gessner, Stefania Gori, Christophe Grojean, Sven Heinemeyer, Daniel Jeans, Katja Kruger, Benno List, Jenny List, Zhen Liu, Shinichiro Michizono, David W. Miller, Ian Moult, Hitoshi Murayama, Tatsuya Nakada, Emilio Nanni, Mihoko Nojiri, Hasan Padamsee, Maxim Perelstein, Michael E. Peskin, Roman Poeschl, Sam Posen, Aidan Robson, Jan Strube, Taikan Suehara, Junping Tian, Maxim Titov, Marcel Vos, Andrew White, Graham Wilson, Kaoru Yokoya, Aleksander Filip Zarnecki, Ichiro Adachi, Kaustubh Agashe, Tatjana Agatonovic Jovin, Hiroaki Aihara, Wolfgang Altmannshofer, Daniele Alves, Justin Anguiano, Ken-Ichi Aoki, Masato Aoki, Toshihiro Aoki, Yumi Aoki, Yasuo Arai, Hayato Araki, Haruka Asada, Kento Asai, Shoji Asai, David Attie, Howard Baer, Jonathan Bagger, Yang Bai, Ian Bailey, Ricardo Barrue, Rainer Bartoldus, Emanuela Barzi, Matthew Basso, Lothar Bauerdick, Sebastian Baum, Alain Bellerive, Sergey Belomestnykh, Jorge Berenguer Antequera, Jakob Beyer, Pushpalatha Bhat, Burak Bilki, Kevin Black, Kenneth Bloom, Geoffrey Bodwin, Veronique Boisvert, Fatma Boran, Vincent Boudry, Radja Boughezal, Antonio Boveia, Ivanka Bozovic-Jelisavcic, Jean-Claude Brient, Stanley Brodsky, Laurent Brunetti, Karsten Buesser, Eugene Bulyak, Philip N. Burrows, Graeme C. Burt, Yunhai Cai, Valentina Cairo, Anadi Canepa, Francesco Giovanni Celiberto, Enrico Cenni, Zackaria Chacko, Iryna Chaikovska, Mattia Checchin, Lisong Chen, Thomas Y. Chen, Hsin Chia Cheng, Gi-Chol Cho, Brajesh Choudhary, Jim Clarke, James Cline, Raymond Co, Timothy Cohen, Paul Colas, Chris Damerell, Arindam Das, Sridhara Dasu, Sally Dawson, Jorge de Blas, Carlos Henrique de Lima, Aldo Deandrea, Klaus Dehmelt, Jean Delayen, Carlos Henrique de Lima, Marcel Demarteau, Dmitri Denisov, Radovan Dermisek, Angel Dieguez, Takeshi Dohmae, Jens Dopke, Katharina Dort, Yong Du, Bohdan Dudar, Bhaskar Dutta, Juhi Dutta, Ulrich Einhaus, Eckhard Elsen, Motoi Endo, Grigory Eremeev, Engin Eren, Jens Erler, Eric Esarey, Lisa Everett, Angeles Faus Golfe, Marcos Fernandez Garcia, Brian Foster, Nicolas Fourches, Mary-Cruz Fouz, Keisuke Fujii, Junpei Fujimoto, Esteban Fullan Torregrosa, Kazuro Furukawa, Takahiro Fusayasu, Juan Fuster, Serguei Ganjour, Yuanning Gao, Naveen Gaur, Rongli Geng, Howard Georgi, Tony Gherghetta, Joel Goldstein, Dorival Goncalves, Julia Gonski, Tomas Gonzalo, Takeyoshi Goto, Toru Goto, Norman Graf, Joseph Grames, Paul Grannis, Lindsey Gray, Alexander Grohsjean, Jiayin Gu, Yalcin Guler, Phillip Gutierrez, Junji Haba, Howard Haber, John Hallford, Koichi Hamaguchi, Tao Han, Kazuhiko Hara, Daisuke Harada, Koji Hashimoto, Katsuya Hashino, Masahito Hayashi, Gudrun Heinrich, Keisho Hidaka, Takeo Higuchi, Fujio Hinode, Zenro Hioki, Minoru Hirose, Nagisa Hiroshima, Junji Hisano, Wolfgang Hollik, Samuel Homiller, Sungwoo Hong, Anson Hook, Yasuyuki Horii, Hiroki Hoshina, Ivana Hristova, Katri Huitu, Yoshifumi Hyakutake, Toru Iijima, Katsumasa Ikematsu, Anton Ilderton, Kenji Inami, Adrian Irles, Akimasa Ishikawa, Koji Ishiwata, Hayato Ito, Igor Ivanov, Sho Iwamoto, Toshiyuki Iwamoto, Masako Iwasaki, Yoshihisa Iwashita, Haoyi Jia, Fabricio Jimenez Morales, Prakash Joshi, Sunghoon Jung, Goran Kacarevic, Michael Kagan, Mitsuru Kakizaki, Jan Kalinowski, Jochen Kaminski, Kazuyuki Kanaya, Shinya Kanemura, Hayato Kanno, Yuya Kano, Shigeru Kashiwagi, Yukihiro Kato, Nanami Kawada, Shin-ichi Kawada, Kiyotomo Kawagoe, Valery Khoze, Hiromichi Kichimi, Doojin Kim, Teppei Kitahara, Ryuichiro Kitano, Jan Klamka, Sachio Komamiya, K. C. Kong, Taro Konomi, Katsushige Kotera, Emi Kou, Ilya Kravchenko, Kiyoshi Kubo, Takayuki Kubo, Takuya Kumaoka, Ashish Kumar, Nilanjana Kumar, Jonas Kunath, Saumyen Kundu, Hiroshi Kunitomo, Masakazu Kurata, Masao Kuriki, Alexander Kusenko, Theodota Lagouri, Andrew J. Lankford, Gordana Lastovicka-Medin, Francois Le Diberder, Claire Lee, Matthias Liepe, Jacob Linacre, Zachary Liptak, Shivani Lomte, Ian Low, Yang Ma, Hani Maalouf, David MacFarlane, Brendon Madison, Thomas Madlener, Tomohito Maeda, Paul Malek, Sanjoy Mandal, Thomas Markiewicz, John Marshall, Aurelien Martens, Victoria Martin, Martina Martinello, Celso Martinez Rivero, Nobuhito Maru, John Matheson, Shigeki Matsumoto, Hiroyuki Matsunaga, Yutaka Matsuo, Kentarou Mawatari, Johnpaul Mbagwu, Peter McIntosh, Peter McKeown, Patrick Meade, Krzysztof Mekala, Petra Merkel, Satoshi Mihara, Víctor Miralles, Marcos Miralles Lopez, Go Mishima, Satoshi Mishima, Bernhard Mistlberger, Alexander Mitov, Kenkichi Miyabayashi, Akiya Miyamoto, Gagan Mohanty, Laura Monaco, Myriam Mondragon, Hugh E. Montgomery, Gudrid Moortgat-Pick, Nicolas Morange, María Moreno Llacer, Stefano Moretti, Toshinori Mori, Toshiyuki Morii, Takeo Moroi, David Morrissey, Benjamin Nachman, Kunihiro Nagano, Jurina Nakajima, Eiji Nakamura, Shinya Narita, Pran Nath, Timothy Nelson, David Newbold, Atsuya Niki, Yasuhiro Nishimura, Eisaku Nishiyama, Yasunori Nomura, Kacper Nowak, Mitsuaki Nozaki, María Teresa Nunez Pardo de Vera, Ines Ochoa, Masahito Ogata, Satoru Ohashi, Hikaru Ohta, Shigemi Ohta, Norihito Ohuchi, Hideyuki Oide, Nobuchika Okada, Yasuhiro Okada, Shohei Okawa, Yuichi Okayasu, Yuichi Okugawa, Toshiyuki Okugi, Takemichi Okui, Yoshitaka Okuyama, Mathieu Omet, Tsunehiko Omori, Hiroaki Ono, Tomoki Onoe, Wataru Ootani, Hidetoshi Otono, Shuhei Ozawa, Simone Pagan Griso, Alessandro Papa, Rocco Paparella, Eun-Kyung Park, Gilad Perez, Abdel Perez-Lorenzana, Yvonne Peters, Frank Petriello, Jonatan Piedra, Werner Porod, Christopher Potter, Alan Price, Yasser Radkhorrami, Laura Reina, Juergen Reuter, Francois Richard, Sabine Riemann, Robert Rimmer, Thomas Rizzo, Tania Robens, Roger Ruber, Alberto Ruiz Jimeno, Takayuki Saeki, Ipsita Saha, Tomoyuki Saito, Makoto Sakaguchi, Tadakatsu Sakai, Yasuhito Sakaki, Kodai Sakurai, Riccardo Salvatico, Fabrizio Salvatore, Yik Chuen San, Pearl Sandick, Tomoyuki Sanuki, Kollassery Swathi Sasikumar, Oliver Schaefer, Ruth Schaefer, Uwe Schneekloth, Thomas Schoerner-Sadenius, Carl Schroeder, Philip Schuster, Ariel Schwartzman, Reinhard Schwienhorst, Felix Sefkow, Yoshihiro Seiya, Motoo Sekiguchi, Kazuyuki Sekizawa, Katsumi Senyo, Hale Sert, Danielev Sertore, Ronald Settles, Qaisar Shafi, Tetsuo Shahdara, Barmak Shams Es Haghi, Ashish Sharma, Jessie Shelton, Claire Shepherd-Themistocleous, Hiroto Shibuya, Tetsuo Shidara, Takashi Shimomura, Tetsuo Shindou, Yutaro Shoji, Jing Shu, Ian Sievers, Frank Simon, Rajeev Singh, Yotam Soreq, Marcel Stanitzki, Steinar Stapnes, Amanda Steinhebel, John Stupak, Shufang Su, Fumihiko Suekane, Akio Sugamoto, Yuji Sugawara, Satoru Sugimoto, Yasuhiro Sugimoto, Hiroaki Sugiyama, Yukinari Sumino, Raman Sundrum, Atsuto Suzuki, Shin Suzuki, Maximilian Swiatlowski, Tim M. P. Tait, Shota Takahashi, Tohru Takahashi, Tohru Takeshita, Michihisa Takeuchi, Yosuke Takubo, Tomohiko Tanabe, Philip Tanedo, Morimitsu Tanimoto, Shuichiro Tao, Xerxes Tata, Toshiaki Tauchi, Geoffrey Taylor, Takahiro Terada, Nobuhiro Terunuma, Jesse Thaler, Alessandro Thea, Finn Tillinger, Jan Timmermans, Kohsaku Tobioka, Kouichi Toda, Atsushi Tokiyasu, Takashi Toma, Julie Torndal, Mehmet Tosun, Yu-Dai Tsai, Shih-Yen Tseng, Koji Tsumura, Douglas Tuckler, Yoshiki Uchida, Yusuke Uchiyama, Daiki Ueda, Fumihiko Ukegawa, Kensei Umemori, Junji Urakawa, Claude Vallee, Roberto Vega, Liliana Velasco, Silvia Verdu-Andres, Caterina Vernieri, Anna Vila, Ivan Vila Alvarez, Joost Vossebeld, Raghava Vsrms, Natasa Vukasinovic, Doreen Wackeroth, Moe Wakida, Liantao Wang, Masakazu Washio, Takashi Watanabe, Nigel Watson, Gordon Watts, Georg Weiglein, James D. Wells, Marc Wenskat, Susanne Westhoff, Glen White, Ciaran Williams, Stephane Willocq, Matthew Wing, Alasdair Winter, Marc Winter, Yongcheng Wu, Keping Xie, Tao Xu, Vyacheslav Yakovlev, Shuei Yamada, Akira Yamamoto, Hitoshi Yamamoto, Kei Yamamoto, Yasuchika Yamamoto, Masato Yamanaka, Satoru Yamashita, Masahiro Yamatani, Naoki Yamatsu, Shigehiro Yasui, Takuya Yoda, Ryo Yonamine, Keisuke Yoshihara, Masakazu Yoshioka, Tamaki Yoshioka, Fukuko Yuasa, Keita Yumino, Dirk Zerwas, Ya-Juan Zheng, Jia Zhou, Hua Xing Zhu, Mikhail Zobov, Fabian Zomer

        2022.3

    　More details

    The International Linear Collider (ILC) is on the table now as a new global
    energy-frontier accelerator laboratory taking data in the 2030s. The ILC
    addresses key questions for our current understanding of particle physics. It
    is based on a proven accelerator technology. Its experiments will challenge the
    Standard Model of particle physics and will provide a new window to look beyond
    it. This document brings the story of the ILC up to date, emphasizing its
    strong physics motivation, its readiness for construction, and the opportunity
    it presents to the US and the global particle physics community.

    arXiv

    Other Link： http://arxiv.org/pdf/2203.07622v3

  2. Enhancement of gravitational waves induced by scalar perturbations due to a sudden transition from an early matter era to the radiation era

    Keisuke Inomata, Kazunori Kohri, Tomohiro Nakama, Takahiro Terada

    Journal of Physics: Conference Series   Vol. 1468 ( 1 ) page： 012002 - 012002   2020.2

    　More details

    Publisher：IOP Publishing  

    Abstract

    Stochastic gravitational wave background is produced from the primordial curvature perturbations at the second order of perturbations. We revisit such induced gravitational waves produced around a sudden reheating transition from an early matterdominated era to the radiation-dominated era. We find significant enhancement of the induced gravitational waves because of fast oscillations of scalar modes already inside the horizon just after the transition with unsuppressed amplitude. The enhancement is so significant that the future gravitational wave observations can detect the gravitational waves if the reheating temperature is in the range T <sub>R</sub> ≲ 7 × 10<sup>−2</sup>GeV or 20 GeV ≲ T <sub>R</sub> ≲ 2 × 10<sup>7</sup> GeV. Thus, the induced gravitational waves can be a useful probe of the reheating dynamics of the universe. This talk is based on Ref. [1].

    DOI： 10.1088/1742-6596/1468/1/012002

    Other Link： https://iopscience.iop.org/article/10.1088/1742-6596/1468/1/012002

  3. Gravitational waves induced by scalar perturbations during a gradual transition from an early matter era to the radiation era

    Keisuke Inomata, Kazunori Kohri, Tomohiro Nakama, Takahiro Terada

    Journal of Physics: Conference Series   Vol. 1468 ( 1 ) page： 012001 - 012001   2020.2

    　More details

    Publishing type：Article, review, commentary, editorial, etc. (international conference proceedings)   Publisher：IOP Publishing  

    Abstract

    We revisit the effects of an early matter dominated era on gravitational waves induced by the scalar perturbations. In this work, we consider the gradual transition from an early matter dominated era to the radiation dominated era, where the time scale of the transition is comparable to the Hubble time at that time. The gradual transition can be realized by the standard perturbative reheating with a constant decay rate. We carefully take into account the evolutions of the perturbations during the gradual transition for the first time. As a result, we find that the induced gravitational waves can be suppressed contrary to the previous results.

    DOI： 10.1088/1742-6596/1468/1/012001

    Other Link： https://iopscience.iop.org/article/10.1088/1742-6596/1468/1/012001

  4. Reinterpretation and Reheating of (SUSY) Starobinsky model

    Takahiro TERADA

    Proceedings of XXVII International Symposium on Lepton Photon Interactions at High Energies — PoS(LeptonPhoton2015)     page： 046 - 046   2016.11

    　More details

    Publisher：Sissa Medialab  

    DOI： 10.22323/1.245.0046

  5. Inflation in Supergravity with a Single Superfield

    Takahiro Terada

        2015.8

    　More details

    Supergravity is a well-motivated theory beyond the standard model of particle
    physics, and a suitable arena to study high-energy physics at the early
    universe including inflation, whose observational evidences are growing more
    and more. Inflation in supergravity, however, cannot be easily described
    because of restrictions from supersymmetry (SUSY). The scalar potential has an
    exponential factor and a large negative term whereas a flat and positive
    potential is needed to realize inflation. The standard method to obtain such an
    inflationary scalar potential requires an additional superfield to the one
    containing inflaton. In this thesis, we propose and develop an alternative
    method which does not require the additional superfield and thus reduces the
    necessary degrees of freedom by half. That is, we study inflation in
    supergravity with only a single chiral superfield which contains inflaton. We
    accomplish it by introducing a higher dimensional term in the inflaton Kahler
    potential, which plays an important dual role: fixing the value of the scalar
    superpartner of the inflaton resulting in effective single field models, and
    ensuring the positivity of the inflaton potential at the large field region.
    Our proposal is not just particular models but rather a new framework to
    realize various inflationary models in supergravity. In particular, large field
    inflation in supergravity using one superfield without tuning has become
    possible for the first time. In our generic models, SUSY breaking at the
    inflationary scale by inflaton is not completely restored after inflation, so
    null results for SUSY search at the LHC are predicted for the simplest cases.
    Remarkably, however, it is possible with tuning to embed arbitrary positive
    semidefinite scalar potentials into supergravity preserving SUSY at the vacuum.
    Our discovery opens up an entirely new branch of model building of inflation in
    supergravity.

    DOI： 10.15083/00008072

    arXiv

    Other Link： http://arxiv.org/pdf/1508.05335v1

  6. Toward Higgs inflation in the MSSM

    Takahiro Terada

        2015.4

    　More details

    Adopting a recently proposed single-superfield framework of supergravity
    inflation, we consider large field inflationary models in which MSSM Higgs-like
    fields play the role of the inflaton. In the simplest cases, the inflaton
    potential has a fractional power, which is different from that of the original
    Higgs inflation, and it can be tested by cosmological observations in near
    future. We find difficulties in identifying the inflaton with the MSSM Higgses
    and discuss possible candidates of the inflaton.

    arXiv

    Other Link： http://arxiv.org/pdf/1504.06230v1

▼display all

To the head of MISC.▲

Presentations 124

  1. Memory-Burdened Primordial-Black-Hole Dark Matter probed by Induced Gravitational Waves International conference

    Takahiro Terada

    Dynamics of Primordial Black Hole Formation II  2024.10.8 

    　More details

    Event date： 2024.10

    Presentation type：Oral presentation (general)  

    Venue：KMI, Nagoya University   Country：Japan  

  2. Evolving dark energy suggested by DESI and its scalar-field interpretation

    Takahiro Terada

    Progress in Particle Physics 2024  2024.8.20 

    　More details

    Event date： 2024.8

    Presentation type：Oral presentation (general)  

    Venue：Yukawa Institute of Theoretical Physics   Country：Japan  

  3. Gravitational-Wave Probes of Superlight & Superheavy Dark Matter Invited International conference

    Takahiro Terada

    Extreme Mass Dark Matter Workshop: from Superlight to Superheavy  2024.3.6 

    　More details

    Event date： 2024.3

    Presentation type：Oral presentation (invited, special)  

    Venue：Yukawa Institute of Theoretical Physics   Country：Japan  

  4. Genesis of the inflationary universe with a transient bouncing/cyclic era Invited International conference

    Takahiro Terada

    20th Rencontres du Vietnam "BSM in Particle Physics and Cosmology: 50 years later"  2024.1.12 

    　More details

    Event date： 2024.1

    Presentation type：Oral presentation (invited, special)  

    Venue：ICISE, Quy Nhon   Country：Viet Nam  

  5. Implications of the gravitino mass/distance conjecture on inflation International conference

    Takahiro Terada

    String Phenomenology 2023  2023.7.6 

    　More details

    Event date： 2023.7

    Presentation type：Oral presentation (general)  

    Venue：IBS, Daejeon   Country：Korea, Republic of  

  6. Dissipative Genesis of the Inflationary Universe International conference

    Takahiro Terada

    PASCOS 2023  2023.6.26 

    　More details

    Event date： 2023.6

    Presentation type：Oral presentation (general)  

    Venue：UC Irvine   Country：United States  

  7. Axion Poltergeist

    Takahiro Terada

    CTPU-KNU Workshop on Particles, Gravitation and Cosmology  2023.4.6 

    　More details

    Event date： 2023.4

    Presentation type：Oral presentation (general)  

    Venue：Kunsan National University, Gunsan   Country：Korea, Republic of  

  8. Threshold of Primordial Black Hole Formation against Velocity Dispersion in Matter-Dominated Era Invited International conference

    Takahiro Terada

    Dynamics of primordial;black hole formation  2023.3.10 

    　More details

    Event date： 2023.3

    Presentation type：Oral presentation (invited, special)  

    Venue：Rikkyo University   Country：Japan  

  9. Dissipative Genesis of Inflationary Universe Invited International conference

    Takahiro Terada

    100+7 GR & Beyond: Inflation  2022.12.12 

    　More details

    Event date： 2022.12

    Presentation type：Oral presentation (invited, special)  

    Venue：Jeju island   Country：Korea, Republic of  

  10. Gravitational Waves Induced by Curvature Perturbations and Effects of Matter/Radiation Transition Invited International conference

    Takahiro Terada

    The Kavli IPMU focus week "Non-linear aspects of cosmological gravitational waves"  2022.7.21 

    　More details

    Event date： 2022.7

    Presentation type：Oral presentation (invited, special)  

    Venue：Kavli IPMU, the University of Tokyo   Country：Japan  

  11. Massless Preheating and Electroweak Vacuum Metastability

    Takahiro Terada

    Progress in Particle Physics 2021  2021.9.6 

    　More details

    Event date： 2021.9

    Presentation type：Oral presentation (general)  

    Venue：online   Country：Japan  

  12. Induced Gravitational Waves from the End of Reheating: Case of Primordial-Black-Hole-Dominated Universe International conference

    Takahiro Terada

    The 24th International Conference on Particle Physics and Cosmology (COSMO’21)  2021.8.3 

    　More details

    Event date： 2021.8

    Presentation type：Oral presentation (general)  

    Venue：online  

  13. Minimal Supergravity Inflation without Slow Gravitino International conference

    Takahiro Terada

    The 26th International Symposium on Particle Physics, String Theory, and Cosmology (PASCOS 2021)  2021.6.15 

    　More details

    Event date： 2021.6

    Presentation type：Oral presentation (general)  

    Venue：online  

  14. Primordial black holes and gravitational waves Invited International conference

    Takahiro Terada

    Astroparticle: the next frontier of fundamental physics  2020.11.18 

    　More details

    Event date： 2020.11

    Presentation type：Oral presentation (general)  

    Venue：online/offline at APCTP   Country：Korea, Republic of  

  15. Gravitational Wave Production right after Primordial Black Hole Evaporation

    Takahiro Terada

    Progress in Particle Physics 2020  2020 

    　More details

    Event date： 2020.8 - 2020.9

    Presentation type：Poster presentation  

    Country：Japan  

    (online presentation)

  16. Bouncing Universe from Nothing International conference

    Takahiro Terada

    Asia-Pacific School and Workshop on Gravitation and Cosmology 2020  2020.2.10 

    　More details

    Event date： 2020.2

    Presentation type：Oral presentation (general)  

    Venue：IBS, Daejeon   Country：Korea, Republic of  

  17. Induced Gravitational Waves -- from reheating effects to gauge (in)dependence -- International conference

    Takahiro Terada

    New perspectives on cosmology  2020.1.9 

    　More details

    Event date： 2020.1

    Presentation type：Oral presentation (general)  

    Venue：APCTP   Country：Korea, Republic of  

  18. Bouncing Universe from Nothing Invited International conference

    Takahiro Terada

    APCTP lecture series on (evidence for) physics beyond Lambda-CDM  2019.12.10 

    　More details

    Event date： 2019.12

    Presentation type：Oral presentation (general)  

    Venue：APCTP   Country：Korea, Republic of  

  19. Primordial Black Holes: Implications for Dark Matter and Gravitational Waves International conference

    The 3rd APCTP Alumni Scientific Symposium  2019.10.18 

    　More details

    Event date： 2019.10

    Presentation type：Oral presentation (invited, special)  

    Venue：APCTP   Country：Korea, Republic of  

  20. Enhancement of gravitational waves induced by scalar perturbations due to a sudden transition from an early matter era to the radiation era International conference

    Takahiro Terada

    16th International Conference on Topics in Astroparticle and Underground Physics (TAUP 2019)  2019.9.12 

    　More details

    Event date： 2019.9

    Presentation type：Oral presentation (general)  

    Venue：Toyama   Country：Japan  

  21. Enhancement of gravitational waves induced by scalar perturbations due to a sudden transition from an early matter era to the radiation era International conference

    Takahiro Terada

    COSMO19  2019.9.5 

    　More details

    Event date： 2019.9

    Presentation type：Oral presentation (general)  

    Venue：RWTH Aachen University   Country：Germany  

  22. Bouncing Universe from Nothing International conference

    Takahiro Terada

    XXV International Symposium: Particle physics, String theory and Cosmology (PASCOS 2019)  2019.7.1 

    　More details

    Event date： 2019.7

    Presentation type：Oral presentation (general)  

    Venue：The University of Manchester   Country：Spain  

  23. Analytic Calculation of Gravitational Wave Spectrum Induced from Primordial Curvature Perturbations International conference

    Takahiro Terada

    The 22nd annual international Conference on Particle Physics and Cosmology (COSMO-18)  2018.8.28 

    　More details

    Event date： 2018.8

    Presentation type：Oral presentation (general)  

    Venue：IBS Science and Culture Center, Daejeon   Country：Korea, Republic of  

  24. General Pole Inflation and Inflationary Attractors International conference

    Takahiro Terada

    PASCOS 2016: 22nd International Symposium on Particles, Strings and Cosmology  2016.7.12 

    　More details

    Event date： 2016.7

    Presentation type：Oral presentation (general)  

    Venue：ICISE, Quy Nhon   Country：Viet Nam  

  25. Reheating of SUSY Starobinsky model International conference

    Takahiro Terada

    The 27th International Symposium on Lepton Photon Interactions at High Energies  2015.8 

    　More details

    Event date： 2015.8

    Language：English   Presentation type：Poster presentation  

    Venue：Ljubljana   Country：Slovenia  

  26. "Poltergeist mechanism" for gravitational-wave production Invited

    Takahiro Terada

    Yonsei HEP-Cosmology Group Seminar  2023.5.24 

    　More details

    Presentation type：Public lecture, seminar, tutorial, course, or other speech  

    Venue：Yonsei University   Country：Korea, Republic of  

  27. Gravitational wave production right after primordial black hole evaporation International conference

    Takahiro Terada

    Online Workshop on General Relativity and Gravitation in Japan 2020 (online JGRG 2020)  2020.11.23 

    　More details

    Presentation type：Oral presentation (general)  

    Venue：online   Country：Japan  

  28. Gravitational Wave Production right after Primordial Black Hole Evaporation International conference

    Takahiro Terada

    IBS and KMI joint workshop 2020  2020.8.24 

    　More details

    Presentation type：Oral presentation (general)  

    Venue：online  

  29. Gravitational Wave Production right after Primordial Black Hole Evaporation International conference

    Takahiro Terada

    The 5th IBS-IFT-MultiDark Workshop "Dark World to Swampland"  2020.10.14 

    　More details

    Presentation type：Oral presentation (general)  

    Venue：online  

  30. General Pole Inflation Invited International conference

    Takahiro Terada

    3rd Korea-Japan Workshop on Dark Energy  2016.4.5 

    　More details

    Presentation type：Oral presentation (invited, special)  

    Venue：KASI   Country：Korea, Republic of  

  31. General holomorphic pure supergravity and its cosmology

    Takahiro Terada

    Progress in Particle Physics 2013  2013.8.8 

    　More details

    Presentation type：Oral presentation (general)  

    Venue：Yukawa Institute of Theoretical Physics   Country：Japan  

  32. General holomorphic pure supergravity and its cosmology International conference

    Takahiro Terada

    19th International Summer Institute on Phenomenology of Elementary Particles and Cosmology  2013.8.22 

    　More details

    Presentation type：Oral presentation (general)  

    Venue：Hanhwa Resort, Jirisan National Park   Country：Korea, Republic of  

  33. Enhanced Gravitational Waves induced by Curvature Perturbations and New Physics International conference

    Takahiro Terada

    A mini-workshop in theory ``New Methodologies and Tools in Particle Physics and Cosmology'' as a part of the program ``IAS Program on High Energy Physics (HEP 2024)''  2024.1.15 

    　More details

    Presentation type：Oral presentation (general)  

    Venue：HKUST IAS, Hong Kong   Country：China  

  34. Dissipative Genesis of the Inflationary Universe International conference

    Takahiro Terada

    The 8th IBS-ICTP-MultiDark Workshop  2023.11.15 

    　More details

    Presentation type：Oral presentation (general)  

    Venue：IFT, Madrid   Country：Spain  

  35. Dissipative Genesis of the Inflationary Universe Invited

    Takahiro Terada

    Seminar at the Theory Center, KEK  2024.6.25 

    　More details

    Presentation type：Public lecture, seminar, tutorial, course, or other speech  

    Venue：KEK   Country：Japan  

  36. Cosmological Gravitational Wave Background -- with a focus on secondary gravitational waves -- Invited

    Takahiro Terada

    2023 KPS Fall Meeting  2023.10.26 

    　More details

    Presentation type：Oral presentation (invited, special)  

    Venue：Changwon Exhibition Convention Center   Country：Korea, Republic of  

  37. Constraints on running inflation with primordial black holes International conference

    Takahiro Terada

    The 7th KIAS Workshop on Particle Physics and Cosmology and The 2nd KEK-NCTS-KIAS Workshop on Particle Physics Phenomenology  2017.11.7 

    　More details

    Presentation type：Oral presentation (general)  

    Venue：KIAS   Country：Korea, Republic of  

  38. Constrained Superfields in Dynamical Background Invited International conference

    Takahiro Terada

    APCTP focus research program "The origin and evolution of the Universe"  2021.11.11 

    　More details

    Presentation type：Oral presentation (invited, special)  

    Venue：Jeju island   Country：Korea, Republic of  

  39. Constrained Superfields in Dynamical Background International conference

    Takahiro Terada

    KEK Theory Workshop 2021 (KEK-TH 2021)  2021.12.7 

    　More details

    Presentation type：Oral presentation (general)  

    Venue：online  

  40. Constrained Superfields in Dynamical Background International conference

    Takahiro Terada

    The 27th International Symposium on Particles, Strings and Cosmology (PASCOS 2022)  2022.7.27 

    　More details

    Presentation type：Oral presentation (general)  

    Venue：Max-Planck Institute for Nuclear Physics (MPIK), Heidelberg   Country：Germany  

  41. Complexified Starobinsky inflation in supergravity

    Koichi Hamaguchi, Takeo Moroi, Takahiro Terada

    Fall Meeting of Japan Physical Society  2014.9.21 

    　More details

    Presentation type：Oral presentation (general)  

    Venue：Saga University   Country：Japan  

  42. Bouncing Universe from Nothing Invited

    Takahiro Terada

    Seminar at the University of Tokyo (Komaba campus)  2019.6.12 

    　More details

    Presentation type：Public lecture, seminar, tutorial, course, or other speech  

    Venue：The University of Tokyo (Komaba campus)   Country：Japan  

  43. Bouncing Universe from Nothing International conference

    Takahiro Terada

    43rd Johns Hopkins Workshop  2019.6.4 

    　More details

    Presentation type：Oral presentation (general)  

    Venue：Kavli IPMU, the University of Tokyo   Country：Japan  

  44. Bouncing Universe from Nothing Invited

    Takahiro Terada

    Seminar at the University of Tokyo (Hongo campus)  2019.6.24 

    　More details

    Presentation type：Public lecture, seminar, tutorial, course, or other speech  

    Venue：The University of Tokyo (Hongo campus)   Country：Japan  

  45. Axion Poltergeist International conference

    Takahiro Terada

    PPC 2023: XVI International Conference on Interactions between Particle Physics and Cosmology  2023.6.13 

    　More details

    Presentation type：Oral presentation (general)  

    Venue：Daejeon   Country：Korea, Republic of  

  46. ATLAS $Z$ $+$ MET Excess in the MSSM International conference

    Takahiro Terada

    DESY Theory Workshop 2015: Physics at the LHC and beyond  2015.10.1 

    　More details

    Presentation type：Oral presentation (general)  

    Venue：DESY   Country：Germany  

  47. $R^2$ Inflation and Reheating in Supergravity International conference

    Takahiro Terada

    The 1st KEK Workshop on "Beyond the Standard Model 2014"  2014.3.5 

    　More details

    Presentation type：Oral presentation (general)  

    Venue：KEK   Country：Japan  

  48. $R^2$ and chaotic inflations in (pure) supergravity

    Takahiro Terada

    Progress in Particle Physics 2014  2014.7.30 

    　More details

    Presentation type：Poster presentation  

    Venue：Yukawa Institute of Theoretical Physics   Country：Japan  

    (The title of the actual presentation was "Simplifying inflation in supergravity".)

  49. $f^2$ scaling of the PTA signals, induced gravitational waves, and primordial black holes International conference

    Takahiro Terada

    Gravitational Wave Probes of Physics Beyond Standard Model, Osaka Metropolitan University  2023.11.9 

    　More details

    Presentation type：Oral presentation (general)  

    Venue：Osaka Metropolitan University   Country：Japan  

  50. Evaluation of gravitino abundance after $R^2$ inflation in $F(R)$ supergravity

    Takahiro Terada

    Fall Meeting of Japan Physical Society.  2013.9.22 

    　More details

    Presentation type：Oral presentation (general)  

    Venue：Kochi University   Country：Japan  

    (The title of the actual presentation was "Is it possible to realize Starobinsky inflation in $F(\mathcal{R})$ supergravity?")

  51. $F(\mathcal{R})$ Supergravity Revisited and Generalized

    Takahiro Terada

    YONUPA summer school 2013  2013.8.5 

    　More details

    Presentation type：Oral presentation (general)  

    Venue：Aichi   Country：Japan  

  52. $D$-term SUSY Breaking Might Solve The Moduli/Inflaton-Induced Gravitino Problem

    Takahiro Terada

    KEK-TH 2012  2012.3.4 

    　More details

    Language：English   Presentation type：Poster presentation  

    Venue：KEK   Country：Japan  

  53. Gravitational waves induced by curvature perturbations

    Takahiro Terada

    CTPU workshop on Particle Physics and Cosmology  2023.10.21 

    　More details

    Presentation type：Oral presentation (general)  

    Venue：IBS, Daejeon   Country：Korea, Republic of  

    (It was like an alumni workshop.)

  54. Scalar Decay into Gravitinos and Cosmology

    Takahiro Terada

    Seminat at Tokyo Metropolitan University  2012.12.27 

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    Presentation type：Public lecture, seminar, tutorial, course, or other speech  

    Venue：Tokyo Metropolitan University   Country：Japan  

  55. Revisiting the supersymmetric Starobinsky inflation in the old-minimal supergravity

    Takahiro Terada

    Seminar at Institute of Physics, Academia Sinica  2013.11.18 

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    Presentation type：Public lecture, seminar, tutorial, course, or other speech  

    Venue：Institute of Physics, Academia Sinica   Country：Taiwan, Province of China  

  56. Revisiting the supersymmetric Starobinsky inflation in the old-minimal supergravity

    Takahiro Terada

    Seminar at Leung Center for Cosmology and Particle Astrophysics (LeCosPA), National Taiwan University  2013.11.11 

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    Presentation type：Public lecture, seminar, tutorial, course, or other speech  

    Venue：Leung Center for Cosmology and Particle Astrophysics (LeCosPA), National Taiwan University   Country：Taiwan, Province of China  

  57. Resurgence in Lorentzian Quantum Cosmology Invited

    Takahiro Terada

    Seminar at Tohoku University  2024.11.28 

    　More details

    Presentation type：Public lecture, seminar, tutorial, course, or other speech  

    Venue：Tohoku University   Country：Japan  

  58. Reinterpretation of the Starobinsky model International conference

    Takahiro Terada

    The 27th International Symposium on Lepton Photon Interactions at High Energies  2015.8.21 

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    Presentation type：Oral presentation (general)  

    Venue：Ljubljana   Country：Slovenia  

    (One of six selected poster presentations which was given an opportunity of oral presentation.)

  59. Reheating after the $R^2$ inflation in supergravity

    Takahiro Terada, Yuki Watanabe, Yusuke Yamada, Jun'ichi Yokoyama

    69th Annual Meeting of Japan Physical Society  2014.3.27 

    　More details

    Presentation type：Oral presentation (general)  

    Venue：Tokai University   Country：Japan  

  60. Reheating after $R^2$ Inflation in Supergravity International conference

    Takahiro Terada

    KEK Theory Workshop 2014  2014.2 

    　More details

    Language：English   Presentation type：Poster presentation  

    Venue：KEK   Country：Japan  

  61. Recent Progress on realization of $R^2$ inflation in supergravity Invited

    Takahiro Terada

    Seminar at Waseda University  2013.11.5 

    　More details

    Presentation type：Public lecture, seminar, tutorial, course, or other speech  

    Venue：Waseda University   Country：Japan  

  62. Probing the Early Universe with Induced Gravitational Waves Invited

    Takahiro Terada

    Online seminar at Shinshu University  2024.10.29 

    　More details

    Presentation type：Public lecture, seminar, tutorial, course, or other speech  

    Venue：online  

  63. Primordial Black Holes and Gravitational Waves: from reheating effects to gauge issue Invited

    Takahiro Terada

    Online seminar at Kyoto University  2020.11.11 

    　More details

    Presentation type：Public lecture, seminar, tutorial, course, or other speech  

    Venue：online  

  64. Primordial black holes and gravitational waves from enhanced density perturbations Invited

    Takahiro Terada

    Seminar at APCTP  2019.10.29 

    　More details

    Presentation type：Public lecture, seminar, tutorial, course, or other speech  

    Venue：APCTP   Country：Korea, Republic of  

  65. Primordial Black Holes and Gravitational Waves -- effects of an early matter-dominated era -- Invited

    Takahiro Terada

    Online seminar at Seoul National University  2021.7.22 

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    Presentation type：Public lecture, seminar, tutorial, course, or other speech  

    Venue：online   Country：Korea, Republic of  

  66. Primordial Black Hole Dark Matter and Gravitational Waves from Binary Mergers and from Curvature Perturbations Invited International conference

    Takahiro Terada

    Focus session ``Frontier in Study on Dark Matter'' at 2019 Korean Physical Society Spring Meeting  2019.4.25 

    　More details

    Presentation type：Oral presentation (invited, special)  

    Venue：Daejeon Convention Center   Country：Korea, Republic of  

  67. On the beginning of the Universe -- Bounce cosmology and Quantum cosmology --

    Takahiro Terada

    Online seminar at 2020 Summer School on Cosmology and Particle Physics  2020.8.14 

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    Presentation type：Public lecture, seminar, tutorial, course, or other speech  

  68. On recent developments about (large-field) inflation in $D=4$, $\mathcal{N}=1$ supergraivty

    Takahiro Terada

    4th meeting for SUGRA study  2017.7.11 

    　More details

    Presentation type：Public lecture, seminar, tutorial, course, or other speech  

    Venue：KEK  

  69. On constrained superfields and inflation International conference

    Takahiro Terada

    Dark World to Swampland 2021, The 6th IBS-IFT-MultiDark Workshop  2021.11.17 

    　More details

    Presentation type：Oral presentation (general)  

    Venue：online  

  70. On anomalous production of slow gravitinos in minimal supergravity inflation and its resolution International conference

    Takahiro Terada

    The XXVIII International Conference on Supersymmetry and Unification of Fundamental Interactions (SUSY 2021)  2021.8.24 

    　More details

    Presentation type：Oral presentation (general)  

    Venue：online  

  71. Non-thermal Gravitino Production after Large-Field Inflation International conference

    Takahiro Terada

    PASCOS 2017  2017.6.22 

    　More details

    Presentation type：Oral presentation (general)  

    Venue：Madrid   Country：Spain  

  72. Non-thermal Gravitino Production after Large-Field Inflation International conference

    Takahiro Terada

    The 6th KIAS Workshop on Particle Physics and Cosmology and the 2nd Durham-KEK-KIPMU-KIAS Joint Workshop  2016.9.25 

    　More details

    Presentation type：Oral presentation (general)  

    Venue：KIAS   Country：Korea, Republic of  

  73. Non-thermal Gravitino Production after Large-Field Inflation

    Takahiro Terada

    Seminar at KEK  2016.12.26 

    　More details

    Presentation type：Public lecture, seminar, tutorial, course, or other speech  

    Venue：KEK   Country：Japan  

  74. NANOGrav and primordial black holes Invited International conference

    Takahiro Terada

    4th KEK-PH + KEK-Cosmo Joint Lectures and Workshop on "Gravitational Wave"  2020.11.4 

    　More details

    Presentation type：Oral presentation (invited, special)  

    Venue：online  

  75. Moduli/Inflaton-Induced Gravitino Problem: $D$-term SUSY Breaking and Multiple Breaking Fields

    Takahiro Terada

    YONUPA summer school 2012  2012.8.6 

    　More details

    Presentation type：Oral presentation (general)  

    Venue：Yamanashi   Country：Japan  

  76. Moduli/Inflaton-Induced Gravitino Problem with $D$-term SUSY Breaking

    Motoi Endo, Koichi Hamaguchi, Takahiro Terada

    Fall Meeting of Japan Physical Society  2012.8.6 

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    Presentation type：Oral presentation (general)  

    Venue：Kyoto Sangyo University   Country：Japan  

  77. Minimal Supergravity Inflation and (Not) Slow Gravitino Invited

    Takahiro Terada

    Online seminar at Chung-Ang University  2021.6.30 

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    Presentation type：Public lecture, seminar, tutorial, course, or other speech  

    Venue：online  

  78. Massless Preheating and the Electroweak Vacuum Instability International conference

    Takahiro Terada

    The 5th International Workshop on "Higgs as a Probe of New Physics"  2021.3.26 

    　More details

    Presentation type：Oral presentation (general)  

    Venue：online  

  79. Massless Preheating and Electroweak Vacuum Metastability

    Takahiro Terada

    6th KEK-PH + 2nd KEK-COSMO joint mini-workshop  2022.3.9 

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    Presentation type：Oral presentation (general)  

  80. Large field inflation in supergravity with a single chiral superfield

    Takahiro Terada

    COSMO 2014  2014.8.29 

    　More details

    Language：English   Presentation type：Poster presentation  

    Venue：Chicago   Country：United States  

  81. Introduction to the First Step for Cosmological Applications of Quantum Simulation

    Takahiro Terada

    An online review talk at a meeting of a Quantum Simulation Study Group  2021.7.8 

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    Presentation type：Public lecture, seminar, tutorial, course, or other speech  

    Venue：online  

  82. Inflaton decay in the SUSY $R^2$ inflation

    Takahiro Terada

    2nd Winter Toyama Mini-Workshop on Particle Physics and Cosmology "Basis of the Universe with Revolutionary Ideas 2014" (BURI 2014)  2014.2.13 

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    Presentation type：Oral presentation (general)  

    Venue：Toyama University   Country：Japan  

  83. Inflation in supergravity: a minimal and powerful approach International conference

    Takahiro Terada

    KEK-PH 2014  2014.10.24 

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    Presentation type：Oral presentation (general)  

    Venue：KEK   Country：Japan  

  84. Inflation in supergravity with a single superfield International conference

    Takahiro Terada

    KEK-TH 2015  2015.1.30 

    　More details

    Presentation type：Oral presentation (general)  

    Venue：KEK   Country：Japan  

  85. Induced Gravitational Waves probing Primordial Black Hole Dark Matter with Memory Burden International conference

    Takahiro Terada

    COSMO'24  2024.10.22 

    　More details

    Language：English   Presentation type：Poster presentation  

    Venue：Kyoto University   Country：Japan  

  86. Induced Gravitational Waves and Matter-Dominated Era

    Takahiro Terada

    Seminar at IAP  2024.11.4 

    　More details

    Presentation type：Public lecture, seminar, tutorial, course, or other speech  

    Venue：IAP, Paris   Country：France  

  87. Implications of Gravitino Swampland Conjectures on Inflation

    Takahiro Terada

    Seminar at the University of Tokyo (Hongo campus)  2022.7.15 

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    Presentation type：Public lecture, seminar, tutorial, course, or other speech  

    Venue：The University of Tokyo (Hongo campus)   Country：Japan  

  88. Gravitino Problem in Modern Inflation Models International conference

    Takahiro Terada

    KEK-PH 2017  2017.2.17 

    　More details

    Presentation type：Oral presentation (general)  

    Venue：KEK   Country：Japan  

  89. Gravitino Problem in Minimal Supergravity Inflation

    Takahiro Terada

    Progress in Particle Physics 2017  2017.8.3 

    　More details

    Presentation type：Poster presentation  

    Venue：Yukawa Institute of Theoretical Physics   Country：Japan  

  90. Gravitino problem in (recently proposed) models of inflation Invited

    Takahiro Terada

    New Physics Forum  2017.12.1 

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    Presentation type：Public lecture, seminar, tutorial, course, or other speech  

    Venue：The University of Tokyo   Country：Japan  

  91. Gravitational Waves Induced by Curvature Perturbations -- Effects of Matter-Radiation Transition --

    Takahiro Terada

    Seminar at Tokyo Institute of Technology  2022.7.8 

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    Presentation type：Public lecture, seminar, tutorial, course, or other speech  

    Venue：Tokyo Institute of Technology   Country：Japan  

  92. Scalar decay into gravitinos in the presence of $D$-term SUSY breaking International conference

    Takahiro Terada

    KEK-PH 2013  2013.3.4 

    　More details

    Presentation type：Oral presentation (general)  

    Venue：KEK   Country：Japan  

  93. Progress in Gravitational-Wave Cosmology -- evidence of stochastic gravitational waves and new-physics interpretations --

    Takahiro Terada

    Progress in Particle Physics 2023  2023.8.30 

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    Presentation type：Poster presentation  

    Venue：Yukawa Institute of Theoretical Physics   Country：Japan  

  94. Thoughts on realistic inflation models 2016

    Takahiro Terada

    Progress in Particle Physics 2016  2016.9.6 

    　More details

    Presentation type：Oral presentation (general)  

    Venue：Yukawa Institute of Theoretical Physics   Country：Japan  

  95. Curvature-induced Gravitational Waves

    Takahiro Terada

    The 1st workshop on "Gravitational Waves and Particle Physics"  2022.2.22 

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    Presentation type：Oral presentation (general)  

    Venue：online and Osaka City University   Country：Japan  

  96. Semi-Analytic Calculation of Gravitational Wave Spectrum Induced from Primordial Curvature Perturbations

    Takahiro Terada

    The 31st Rironkon symposium  2018.12.21 

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    Presentation type：Oral presentation (general)  

    Venue：Yukawa Institute of Theoretical Physics   Country：Japan  

  97. Further study on single superfield inflation

    Takahiro Terada

    70th Annual Meeting of Japan Physical Society  2015.3.23 

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    Presentation type：Oral presentation (general)  

    Venue：Waseda University   Country：Japan  

  98. Gravitino Problem by Moduli Decay

    Takahiro Terada, Motoi Endo, Koichi Hamaguchi

    67th Annual Meeting of Japan Physical Society  2012.3.26 

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    Presentation type：Oral presentation (general)  

    Venue：Kwansei Gakuin University   Country：Japan  

  99. Unitarity constraint on the K\"{a}hler curvature International conference

    Takahiro Terada

    KEK Theory workshop 2018  2018.12.17 

    　More details

    Presentation type：Oral presentation (general)  

    Venue：KEK   Country：Japan  

  100. Unitarity constraint on the K\"ahler curvature Invited

    Takahiro Terada

    Seminar at Hokkaido University  2018.11.30 

    　More details

    Presentation type：Public lecture, seminar, tutorial, course, or other speech  

    Venue：Hokkaido University   Country：Japan  

  101. Unitarity constraint on the K\"ahler curvature Invited

    Takahiro Terada

    Seminar at Tohoku University  2018.10.11 

    　More details

    Presentation type：Public lecture, seminar, tutorial, course, or other speech  

    Venue：Tohoku University   Country：Japan  

  102. Trans-Planckian Censorship conjecture and single-field inflaton potential

    Takahiro Terada

    Seminar at ICRR, the University of Tokyo  2020.1.31 

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    Presentation type：Public lecture, seminar, tutorial, course, or other speech  

    Venue：ICRR, the University of Tokyo   Country：Japan  

  103. Toward Higgs inflation in the MSSM International conference

    Takahiro Terada

    The 2nd Toyama International Workshop on "Higgs as a Probe of New Physics 2015" (HPNP2015)  2015.2.12 

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    Language：English   Presentation type：Poster presentation  

    Venue：Toyama   Country：Japan  

  104. Threshold of Primordial Black Hole Formation against Velocity Dispersion in Matter-Dominated Era Invited

    Takahiro Terada

    The 2nd APCTP-TRP workshop for Physics of the Early Universe, APCTP  2023.6.23 

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    Presentation type：Oral presentation (invited, special)  

    Venue：APCTP   Country：Korea, Republic of  

  105. The Third Way to the Inflationary Universe in Supergravity Invited

    Takahiro Terada

    Workshop on tests of new physics  2015.3.15 

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    Presentation type：Oral presentation (invited, special)  

    Venue：Okinawa Institute of Science and Technology   Country：Japan  

  106. The General Holomorphic Pure Supergravity and Its Bosonic Sector

    Takahiro Terada

    Kavli IPMU School on the Future of Collider Physics  2013.7.18 

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    Language：English   Presentation type：Poster presentation  

    Venue：Kavli IPMU   Country：Japan  

  107. The general action of the 4D $\mathcal{N}$=1 old minimal supergravity

    Takahiro Terada

    68th Annual Meeting of Japan Physical Society  2013.3.29 

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    Presentation type：Oral presentation (general)  

    Venue：Hiroshima University   Country：Japan  

  108. The Detected Stochastic Gravitational Waves and Sub-Solar Mass Primordial Black Holes Invited International conference

    Takahiro Terada

    Ideas on first evidence of stochastic GW from PTA  2023.7.14 

    　More details

    Presentation type：Oral presentation (invited, special)  

    Venue：online  

    (Originally, my collaborator, Dr. Keisuke Inomata, was invited, who could not attend the workshop.)

  109. Suppression/Enhancement of the Gravitational Waves induced by Curvature Perturbations after Reheating International conference

    Takahiro Terada

    Future Perspective in Cosmology and Gravity (KMI workshop)  2019.4.4 

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    Presentation type：Oral presentation (general)  

    Venue：KMI, Nagoya University   Country：Japan  

  110. Supersymmetric $R^2$ inflation: the status of $F(\mathcal{R})$ supergravity Invited

    Takahiro Terada

    Seminar at RESCEU, the University of Tokyo  2013.10.28 

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    Presentation type：Public lecture, seminar, tutorial, course, or other speech  

    Venue：RESCEU, the University of Tokyo   Country：Japan  

  111. Starobinsky inflation in the old minimal supergravity International conference

    Takahiro Terada

    KEK-PH 2013 FALL  2013.10.1 

    　More details

    Presentation type：Oral presentation (general)  

    Venue：KEK   Country：Japan  

  112. Stability of Inflationary Dynamics in $F(\mathcal{R})$ Supergravity International conference

    Takahiro Terada

    19th International Symposium on Particles, Strings and Cosmology (PASCOS 2013)  2013.11.20 

    　More details

    Presentation type：Oral presentation (general)  

    Venue：Taipei   Country：Taiwan, Province of China  

    (The title of the actual presentation was "Generic Supergravity Actions and $R^2$ Inflation".)

  113. Single-superfield realization of large-field inflation in supergravity International conference

    Takahiro Terada

    New perspectives on cosmology  2016.1.6 

    　More details

    Presentation type：Oral presentation (general)  

    Venue：APCTP   Country：Korea, Republic of  

  114. Single-superfield realization of large-field inflation in supergravity Invited

    Takahiro Terada

    Seminar at the University of Groningen  2015.11.10 

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    Presentation type：Public lecture, seminar, tutorial, course, or other speech  

    Venue：The University of Groningen   Country：Netherlands  

  115. Single-Superfield Inflation with Quartic Stabilization and Low-Energy Supersymmetry Breaking International conference

    Takahiro Terada

    The 22nd International Summer Institute on Phenomenology of Elementary Particle Physics and Cosmology (SI2016)  2016.8.22 

    　More details

    Presentation type：Oral presentation (general)  

    Venue：Xitou, Nantou County   Country：Taiwan, Province of China  

  116. Single superfield inflation, moduli stabilization, and supersymmetry breaking International conference

    Takahiro Terada

    COSMO 2015  2015.9.9 

    　More details

    Presentation type：Oral presentation (general)  

    Venue：The University of Warsaw   Country：Poland  

    (The title of the actual presentation was "Single-Superfield Helica-Phase Inflation".)

  117. Single Superfield Inflation in Supergravity International conference

    Takahiro Terada

    20th International Summer Institute on Phenomenology of Elementary Particles and Cosmology (SI2014)  2014.8.23 

    　More details

    Language：English   Presentation type：Poster presentation  

    Venue：Fuji-Yoshida   Country：Japan  

  118. Single Superfield Inflation International conference

    Takahiro Terada

    DESY Theory Workshop 2014: Particle Cosmology after Planck  2014.9.25 

    　More details

    Presentation type：Oral presentation (general)  

    Venue：DESY   Country：Germany  

  119. Single Superfield Inflation

    Sergei V. Ketov, Takahiro Terada

    Fall Meeting of Japan Physical Society  2014.9.21 

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    Presentation type：Oral presentation (general)  

    Venue：Saga University   Country：Japan  

  120. Sign of K\"{a}hler Curvature and Unitarity

    Takahiro Terada

    Progress in Particle Physics 2018  2018.8.10 

    　More details

    Presentation type：Oral presentation (general)  

    Venue：Yukawa Institute of Theoretical Physics   Country：Japan  

  121. Semi-Analytic Calculation of Gravitational Wave Spectrum Induced from Primordial Curvature Perturbations International conference

    Takahiro Terada

    KEK Theory Meeting on Particle Physics Phenomenology (KEK-PH 2018 winter) and 3rd KIAS-NCTS-KEK workshop on Particle Physics Phenomenology  2018.12.5 

    　More details

    Presentation type：Oral presentation (general)  

    Venue：KEK   Country：Japan  

  122. Semi-Analytic Calculation of Gravitational Wave Spectrum Induced from Primordial Curvature Perturbations Invited

    Takahiro Terada

    Seminar at Nagoya University  2018.6.26 

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    Presentation type：Public lecture, seminar, tutorial, course, or other speech  

    Venue：Nagoya University   Country：Japan  

  123. Semi-Analytic Calculation of Gravitational Wave Spectrum Induced from Primordial Curvature Perturbations Invited

    Takahiro Terada

    Seminar at Kyoto University  2018.5.23 

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    Presentation type：Public lecture, seminar, tutorial, course, or other speech  

    Venue：Kyoto University   Country：Japan  

  124. Scalar-induced Gravitational Waves -- from reheating effects & gauge (in)dependence --

    Takahiro Terada

    Seminar at Tohoku University  2020.1.22 

    　More details

    Presentation type：Public lecture, seminar, tutorial, course, or other speech  

    Venue：Tohoku University   Country：Japan  

▼display all

To the head of Presentations.▲

KAKENHI (Grants-in-Aid for Scientific Research) 3

  1. 重力波で探る加速膨張宇宙

    Grant number：9284  2024.9 - 2026.3

    公益財団法人 大幸財団  自然科学系学術研究助成 

  2. Frontiers of inflation in supergravity

    Grant number：17J00731  2017.4 - 2020.3

    Japan Society for the Promotion of Science  Grants-in-Aid for Scientific Research  Grant-in-Aid for JSPS Fellows

  3. 超重力理論の拡張と宇宙論

    Grant number：14J10619  2014.4 - 2016.3

    日本学術振興会  科学研究費助成事業  特別研究員奨励費

    寺田 隆広

    　 More details

    本年度は主に、修正重力理論の一種であるスカラー・テンソル理論を超対称化した超重力理論を題材とした研究を行った。具体的には、前年度に発見した「単一の超場による超重力理論」を発展させ、最小超対称標準模型でのヒッグス・インフレーションに応用できるかを議論した。シンプルな仮定の下では成功しないことを結論付けたが、大統一理論のヒッグスなど、より一般の条件下での応用可能性がある。ヒッグス粒子は2012年に発見されており、この粒子に対応する場がインフレーションを引き起こしたかどうかは非常に興味深い疑問である。それを実現する模型の候補を制限したという意義がある。また、近年超重力理論でインフレーションを起こす方法として新たに見つかった「螺旋位相インフレーション」を、単一超場の枠組みでも実現できる事を示した。モノドロミーという特異性を許せば多様なインフレーション模型が実現可能である。一方、モノドロミー無しのシンプルな場合には、ナチュラル・インフレーションの超重力理論での最小の実現が可能である。これには、超重力理論でのインフレーション機構の新発見という意義の他に、ナチュラル・インフレーションをより基礎的な理論で記述できるようにしたという意義がある。研究実施計画に記述した国際研究会においてこれらの発見を発表した。この他に、年度内には雑誌掲載が決まらなかったがarXivに発表済みの研究として、インフレーション・アトラクター模型及び極インフレーションに関するものがある。極インフレーションの性質を一般化に調べ、多様なインフレーション模型が実現され得る事を発見した。超重力理論ではF項またはD項によってインフレーションが起きるが、殆ど議論されていなかった後者でのアトラクター機構を明確にした。これらはインフレーションの予言の普遍性及び多様性と、その背後にある理論の構造を明らかにしたという意義がある。

To the head of KAKENHI (Grants-in-Aid for Scientific Research).▲
 

Social Contribution 1

  1. 宇宙はどんな風に生まれたの？

    Role(s)：Lecturer

    KEK・つくばエキスポセンター  七夕講演会2018  2018.7

To the head of Social Contribution.▲