Updated on 2024/02/27

写真a

 
NISHIMURA Harumichi
 
Organization
Graduate School of Informatics Department of Mathematical Informatics 2 Professor
Graduate School
Graduate School of Information Science
Graduate School of Informatics
Undergraduate School
School of Informatics Department of Natural Informatics
Title
Professor

Degree 1

  1. 博士(学術) ( 2001.3   名古屋大学 ) 

Research Interests 2

  1. computational complexity

  2. quantum computing

Current Research Project and SDGs 1

  1. quantum complexity theory

Research History 4

  1. 名古屋大学・准教授

    2012.4

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    Country:Japan

  2. 大阪府立大学・講師

    2006.4 - 2012.3

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    Country:Japan

  3. 京都大学・特任助手

    2005.10 - 2006.3

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    Country:Japan

  4. 科学技術振興機構今井量子計算機構プロジェクト・研究員

    2004.7 - 2005.9

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    Country:Japan

Education 2

  1. Nagoya University   Graduate School, Division of Human Informatics

    - 2001.3

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    Country: Japan

  2. Nagoya University   Faculty of Science

    - 1994.3

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    Country: Japan

Professional Memberships 2

  1. 日本数学会

  2. 情報処理学会

Committee Memberships 5

  1. 量子情報技術研究会   委員  

    2012.11 - 2014.11   

  2. 量子情報技術研究会   幹事  

    2010.11 - 2012.11   

  3. コンピュテーション研究会   専門委員  

    2008.6 - 2014.5   

  4. 日本数学会数学基礎論および歴史分科会   運営委員  

    2007.10 - 2010.9   

  5. 量子情報技術研究会   委員  

    2006.11 - 2010.11   

 

Papers 61

  1. Distributed Merlin-Arthur Synthesis of Quantum States and Its Applications Reviewed

    Francois Le Gall, Masayuki Miyamoto, Harumichi Nishimura

    Leibniz International Proceedings in Informatics     2023.8

  2. Distributed Quantum Interactive Proofs Reviewed

    Francois Le Gall, Masayuki Miyamoto, Harumichi Nishimura

    Leibniz International Proceedings in Informatics   Vol. 254   page: 42:1 - 42:21   2023.3

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    Language:English  

  3. Brief Announcement: Distributed Quantum Interactive Proofs Reviewed

    Francois Le Gall, Masayuki Miyamoto, Harumichi Nishimura

    Leibniz International Proceedings in Informatics   Vol. 246   2022.10

  4. Quantum logarithmic space and post-selection Reviewed International coauthorship

    Francois Le Gall, Harumichi Nishimura, Abuzer Yakaryilmaz

    Leibniz International Proceedings in Informatics   Vol. 197   2021.7

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    Language:English   Publishing type:Research paper (international conference proceedings)  

  5. Communication Complexity of Private Simultaneous Quantum Messages Protocols Reviewed

    Akinori Kawachi, Harumichi Nishimura

    Leibniz International Proceedings in Informatics   Vol. 199   2021.7

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    Language:English   Publishing type:Research paper (international conference proceedings)  

  6. Distributed quantum proofs for replicated data Reviewed International coauthorship

    Pierre Fraigniaud, Francois Le Gall, Harumichi Nishimura, Ami Paz

    Leibniz International Proceedings in Informatics   Vol. 185   page: 28:1 - 28:20   2021.1

  7. Brief Announcement: Distributed quantum proofs for replicated data Reviewed International coauthorship

    Pierre Fraigniaud, Francois Le Gall, Harumichi Nishimura, Ami Paz

    Leibniz International Proceedings in Informatics   Vol. 179   page: 43:1 - 43:3   2020.10

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    Publishing type:Research paper (international conference proceedings)  

  8. Rational proofs for quantum computing Reviewed

    Tomoyuki Morimae, Harumichi Nishimura

    Quantum Information and Computation   Vol. 20   page: 181-193   2020.4

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    Language:English   Publishing type:Research paper (scientific journal)  

  9. Impossibility of blind quantum sampling for classical client Reviewed

    Tomoyuki Morimae, Harumichi Nishimura, Yuki Takeuchi, Seiichiro Tani

    Quantum Information and Computation   Vol. 19   page: 793-806   2019.8

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    Language:English   Publishing type:Research paper (scientific journal)  

  10. Quantum Arthur-Merlin Games Reviewed

    Hirotada Kobayashi, Francois Le Gall, Harumichi Nishimura

    SIAM Journal on Computing   Vol. 48   page: 865-902   2019.5

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1137/17M1160173

  11. Quantum advantage for the LOCAL model in distributed computing Reviewed

    Francois Le Gall, Harumichi Nishimura, Ansis Rosmanis

    Leibniz International Proceedings in Informatics   Vol. 126   page: 49:1-49:14   2019.3

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    Language:English  

    DOI: 10.4230/LIPIcs.STACS.2019.49

  12. Merlin-Arthur with efficient quantum Merlin and quantum supremacy for the second level of the Fourier hierarchy

    Tomoyuki Morimae, Yuki Takeuchi, Harumichi Nishimura

    Quantum   Vol. 2   2018.11

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.22331/q-2018-11-15-106

  13. Impossibility of classically simulating one-clean-qubit model with multiplicative error

    Keisuke Fujii, Hirotada Kobayashi, Tomoyuki Morimae, Harumichi Nishimura, Shuhei Tamate, Seiichiro Tani

    Physical Review Letters   Vol. 120   2018.5

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1103/PhysRevLett.120.200502

  14. Merlinization of complexity classes above BQP Reviewed

    Tomoyuki Morimae, Harumichi Nishimura

    Quantum Information and Computation   Vol. 17 ( 11-12 ) page: 0959-0972   2017.9

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    Language:English   Publishing type:Research paper (scientific journal)  

  15. Quantum algorithms for matrix products over semirings Reviewed

    Francois Le Gall, Harumichi Nishimura

    Chicago Journal of Theoretical Computer Science   Vol. 2017   2017.5

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.4086/cjtcs.2017.001

  16. Power of one nonclean qubit Reviewed

    Tomoyuki Morimae, Keisuke Fujii, Harumichi Nishimura

    Physical Review A   Vol. 95   2017.4

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1103/PhysRevA.95.042336

  17. Modified group non-membership is in promise-AWPP relative to group oracles Reviewed

    Tomoyuki Morimae, Harumichi Nishimura, Francois Le Gall

    Quantum Information and Computation   Vol. 17 ( 3-4 ) page: 242-250   2017.3

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    Language:English   Publishing type:Research paper (scientific journal)  

  18. Quantum query complexity of almost all functions with fixed on-set size Reviewed

    Andris Ambainis, Kazuo Iwama, Masaki Nakanishi, Harumichi Nishimura, Rudy Raymond, Seiichiro Tani, Shigeru Yamashita

    Computational Complexity   Vol. 25 ( 4 ) page: 723-735   2016.12

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/s00037-016-0139-6

  19. Space-Efficient Error Reduction for Unitary Quantum Computations Reviewed

    Bill Fefferman, Hirotada Kobayashi, Cedric Yen-Yu Lin, Tomoyuki Morimae, Harumichi Nishimura

    Leibniz International Proceedings in Informatics   Vol. 55   page: 14:1-14:14   2016.7

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    Language:English  

    DOI: 10.4230/LIPIcs.ICALP.2016.14

  20. Power of quantum computation with few clean qubits Reviewed

    Keisuke Fujii, Hirotada Kobayashi, Tomoyuki Morimae, Harumichi Nishimura, Shuhei Tamate, Seiichiro Tani

    Leibniz International Proceedings in Informatics   Vol. 55   page: 13:1-13:14   2016.7

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    Language:English  

    DOI: 10.4230/LIPIcs.ICALP.2016.13

  21. Quantum interpretations of AWPP and APP Reviewed

    Tomoyuki Morimae, Harumichi Nishimura

    Quantum Information and Computation   Vol. 16 ( 5-6 ) page: 498-514   2016.4

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    Language:English   Publishing type:Research paper (scientific journal)  

  22. Quantum algorithms for finding constant-sized sub-hypergraphs Reviewed

    Francois Le Gall, Harumichi Nishimura, Seiichiro Tani

    Theoretical Computer Science   Vol. 609 ( 3 ) page: 569-582   2016.1

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.tcs.2015.10.006

  23. Quantum Merlin-Arthur with Clifford Arthur

    Tomoyuki Morimae, Masahito Hayashi, Harumichi Nishimura, Keisuke Fujii

    Quantum Information and Computation   Vol. 15 ( 15-16 ) page: 1420-1430   2015.11

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    Language:English   Publishing type:Research paper (scientific journal)  

  24. Generalized quantum Arthur-Merlin games Reviewed

    Hirotada Kobayashi, Francois Le Gall, Harumichi Nishimura

    Leibniz International Proceedings in Informatics   Vol. 33   page: 488-511   2015.6

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    Language:English  

    DOI: 10.4230/LIPIcs.CCC.2015.488

  25. Stronger methods of making quantum interactive proofs perfectly complete Reviewed

    Hirotada Kobayashi, Francois Le Gall, Harumichi Nishimura

    SIAM Journal on Computing   Vol. 44 ( 2 ) page: 243-289   2015.3

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1137/140971944

  26. Interactive proofs with quantum finite automata Reviewed

    Harumichi Nishimura, Tomoyuki Yamakami

    Theoretical Computer Science   Vol. 568   page: 1-18   2015.2

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.tcs.2014.11.030

  27. Quantum network coding and the current status of its studies

    Harumichi Nishimura

    Proceedings of the International Symposium on Information Theory and Its Applications (ISITA2014)     page: 331-334   2014.10

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  28. Quantum algorithms for finding constant-sized subgraphs

    Francois Le Gall, Harumichi Nishimura, Seiichiro Tani

    Lecture Notes in Computer Science (Proceedings of 20th International Conference on Computing and Combinatorics)   Vol. 8591   page: 429-440   2014.8

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    Language:English  

    DOI: 10.1007/978-3-319-08783-2_37

  29. Quantum algorithms for matrix product over semirings

    Francois Le Gall, Harumichi Nishimura

    Lecture Notes in Computer Science (Proceedings of 14th Scandinavian Symposium and Workshops)   Vol. 8503   page: 331-343   2014.7

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    Language:English  

    DOI: 10.1007/978-3-319-08404-6_29

  30. RECOVERING STRINGS IN ORACLES: QUANTUM AND CLASSIC

    Kazuo Iwama, Harumichi Nishimura

    International Journal of Foundations of Computer Science   Vol. 24 ( 7 ) page: 979-993   2013.11

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1142/S0129054113400261

  31. Quantum network coding - How can network coding be applied to quantum information?

    Harumichi Nishimura

    Proceedings of the 2013 IEEE International Symposium on Network Coding     2013.6

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    Language:English  

    DOI: 10.1109/NetCod.2013.6570840

  32. Stronger methods of making quantum interactive proofs perfectly complete Reviewed

    Hirotada Kobayashi, Francois Le Gall, Harumichi Nishimura

    Proceedings of the 4th ACM Conference on Innovations in Theoretical Computer Science Conference (ITCS2013)     page: 329-352   2013.1

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    Language:English  

    DOI: 10.1145/2422436.2422475

  33. On QMA protocols with two short quantum proofs

    Francois Le Gall, Shota Nakagawa, Harumichi Nishimura

    Quantum Information & Computation   Vol. 12   page: 589-600   2012.8

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  34. Quantum counterfeit coin problems

    Kazuo Iwama, Harumichi Nishimura, Rudy Raymond, Junichi Teruyama

    Theoretical Computer Science   Vol. 456   page: 51-64   2012.8

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.tcs.2012.05.039

  35. Reconstructing strings from substrings with quantum queries

    Richard Cleve, Kazuo Iwama, Francois Le Gall, Harumichi Nishimura, Seiichiro Tani, Junichi Teruyama, Shigeru Yamashita

    Lecture Notes in Computer Science (Proceedings of 13th Scandinavian Symposium and Workshops)   Vol. 7357   page: 622-633   2012.7

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    Language:English  

    DOI: 10.1007/978-3-642-31155-0_34

  36. Computational indistinguishability between quantum states and its cryptographic application

    Akinori Kawachi, Takeshi Koshiba, Harumichi Nishimura, Tomoyuki Yamakami

    Journal of Cryptology   Vol. 25   page: 528-555   2012.7

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/s00145-011-9103-4

  37. Achieving perfect completeness in classical-witness quantum Merlin-Arthur proof systems

    Stephen P. Jordan, Hirotada Kobayashi, Daniel Nagaj, Harumichi Nishimura

    Quantum Information & Computation   Vol. 12   page: 461-471   2012.6

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  38. Unbounded-error quantum query complexity

    Ashley Montanaro, Harumichi Nishimura, Rudy Raymond

    Theoretical Computer Science   Vol. 412   page: 4619-4628   2011

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.tcs.2011.04.043

  39. Constructing quantum network coding schemes from classical nonlinear protocols

    Hirotada Kobayashi, Francois Le Gall, Harumichi Nishimura, Martin Roetteler

    Proceedings of IEEE International Symposium on Information Theory 2011     page: 109-113   2011

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    Language:English  

    DOI: 10.1109/ISIT.2011.6033701

  40. Quantum counterfeit coin problems

    Kazuo Iwama, Harumichi Nishimura, Rudy Raymond, Junichi Teruyama

    Lecture Notes in Computer Science (Proceedings of 21st International Symposium on Algorithms and Computation)   Vol. 6506   page: 73-84   2010

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    Language:English  

    DOI: 10.1007/978-3-642-17517-6_10

  41. Perfect quantum network communication protocol based on classical network coding

    Hirotada Kobayashi, Francois Le Gall, Harumichi Nishimura, Martin Roetteler

    Proceedings of IEEE International Symposium on Information Theory 2010     page: 2686-2690   2010

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    Language:English  

    DOI: 10.1109/ISIT.2010.5513644

  42. An application of quantum finite automata to interactive proof systems

    Harumichi Nishimura, Tomoyuki Yamakami

    Journal of Computer and System Sciences   Vol. 75   page: 255-269   2009

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.jcss.2008.12.001

  43. Perfect computational equivalence between quantum Turing machines and finitely generated uniform quantum circuit families

    Harumichi Nishimura, Masanao Ozawa

    Quantum Information Processing   Vol. 8   page: 13-24   2009

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1007/s11128-008-0091-8

  44. Quantum random access coding

    Harumichi Nishimura, Rudy Raymond

    IEICE Transactions   Vol. 92 ( A(5) ) page: 1268-1275   2009

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  45. General scheme for perfect quantum network coding with free classical communication

    Hirotada Kobayashi, Francois Le Gall, Harumichi Nishimura, Martin Roetteler

    Lecture Notes in Computer Science (Proceedings of 36th International Colloquium on Automata, Languages and Programming)   Vol. 5555   page: 622-633   2009

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    Language:English  

    DOI: 10.1007/978-3-642-02927-1_52

  46. Unbounded-error quantum query complexity

    Ashley Montanaro, Harumichi Nishimura, Rudy Raymond

    Lecture Notes in Computer Science (Proceedings of 19th International Symposium on Algorithms and Computation)   Vol. 5369   page: 919-930   2008

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    Language:English  

    DOI: 10.1007/978-3-540-92182-0_80

  47. Polynomial-time construction of linear network coding

    Kazuo Iwama, Harumichi Nishimura, Mike Paterson, Rudy Raymond, Shigeru Yamashita

    Lecture Notes in Computer Science (Proceedings of 35th International Colloquium on Automata, Languages and Programming)   Vol. 5125   page: 271-282   2008

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    Language:English  

    DOI: 10.1007/978-3-540-70575-8_23

  48. The efficiency of quantum identity testing of multiple states

    Masaru Kada, Harumichi Nishimura, Tomoyuki Yamakami

    Journal of Physics A: Mathematical and Theoretical   Vol. 41 ( Article no. 395309 ) page: 1-13   2008

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1088/1751-8113/41/39/395309

  49. Quantum query complexity of Boolean functions with small on-sets

    Andris Ambainis, Kazuo Iwama, Masaki Nakanishi, Harumichi Nishimura, Rudy Raymond, Seiichiro Tani, Shigeru Yamashita

    Lecture Notes in Computer Science (Proceedings of 19th International Symposium on Algorithms and Computation)   Vol. 5369   page: 907-918   2008

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    Language:English  

    DOI: 10.1007/978-3-540-92182-0_79

  50. Unbounded-error classical and quantum communication complexity

    Kazuo Iwama, Harumichi Nishimura, Rudy Raymond, Shigeru Yamashita

    Lecture Notes in Computer Science (Proceedings of 18th International Symposium on Algorithms and Computation)   Vol. 4835   page: 100-111   2007

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    Language:English  

    DOI: 10.1007/978-3-540-77120-3_11

  51. Quantum network coding

    Masahito Hayashi, Kazuo Iwama, Harumichi Nishimura, Rudy Raymond, Shigeru Yamashita

    Lecture Notes in Computer Science (Proceedings of 24th Annual Symposium on Theoretical Aspects of Computer Science)   Vol. 4393   page: 610-621   2007

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    Language:English  

    DOI: 10.1007/978-3-540-70918-3_52

  52. Unbounded-error one-way classical and quantum communication complexity

    Kazuo Iwama, Harumichi Nishimura, Rudy Raymond, Shigeru Yamashita

    Lecture Notes in Computer Science (Proceedings of 34th International Colloquium on Automata, Languages and Programming)   Vol. 4596   page: 110-121   2007

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    Language:English  

    DOI: 10.1007/978-3-540-73420-8_12

  53. (4,1)-quantum random access coding does not exist - one qubit is not enough to recover one of four bits

    Masahito Hayashi, Kazuo Iwama, Harumichi Nishimura, Rudy Raymond, Shigeru Yamashita

    New Journal of Physics   Vol. 8 ( Article no. 129 ) page: 1-11   2006

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1088/1367-2630/8/8/129

  54. Quantum computation with supplementary information

    Harumichi Nishimura

    IPSJ Journal   Vol. 46   page: 2392-2399   2005

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.2197/ipsjdc.1.407

  55. Uniformity of quantum circuit families for error-free algorithms

    Harumichi Nishimura, Masanao Ozawa

    Theoretical Computer Science   Vol. 332   page: 487-496   2005

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.tcs.2004.12.020

  56. Polynomial-time quantum computation with advice

    Harumichi Nishimura, Tomoyuki Yamakami

    Information Processing Letters   Vol. 90   page: 195-204   2004

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/j.ipl.2004.02.005

  57. An Algorithmic Argument for Nonadaptive Query Complexity Lower Bounds on Advised Quantum Computation Reviewed

    Harumichi Nishimura, Tomoyuki Yamakami

    Lecture Notes in Computer Science (Proceedings of the 29th International Symposium on Mathematical Foundations of Computer Science)   Vol. 3153   page: 827-838   2004

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    Language:English  

    DOI: 10.1007/978-3-540-28629-5_65

  58. Quantum Computation With Restricted Amplitudes Reviewed

    Harumichi Nishimura

    International Journal of Foundations of Computer Science   Vol. 14   page: 853-870   2003

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1142/S0129054103002059

  59. On quantum one-way permutations Reviewed

    Elham Kashefi, Harumichi Nishimura, Vlatko Vedral

    Quantum Information and Computation   Vol. 2   page: 379-398   2002

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  60. Computational complexity of uniform quantum circuit families and quantum Turing machines Reviewed

    Harumichi Nishimura, Masanao Ozawa

    Theoretical Computer Science   Vol. 276   page: 147-181   2002

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1016/S0304-3975(01)00111-6

  61. Local transition functions of quantum Turing machines Reviewed

    Masanao Ozawa, Harumichi Nishimura

    RAIRO Theoretical Informatics and Applications   Vol. 34   page: 379-402   2000

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    Language:English   Publishing type:Research paper (scientific journal)  

    DOI: 10.1051/ita:2000123

▼display all

Books 4

  1. 基礎から学ぶ量子計算

    西村治道( Role: Sole author)

    オーム社  2022.11 

  2. 理論計算機科学事典

    西村治道( Role: Contributor ,  3.7節 量子計算)

    朝倉書店  2022.1 

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    Responsible for pages:265-282   Language:Japanese Book type:Dictionary, encyclopedia

  3. 電子情報通信学会ハンドブック「知識ベース 知識の森」 6群2編6章2節 通信計算量

    西村治道( Role: Sole author)

    電子情報通信学会  2011 

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    Language:Japanese

  4. 電子情報通信学会ハンドブック「知識ベース 知識の森」 S2群5編3章1節 量子計算理論

    西村治道( Role: Sole author)

    電子情報通信学会  2011 

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    Language:Japanese

MISC 2

  1. 情報と計算機

    西村治道

    数理科学   Vol. 723   page: 36 - 42   2023.8

  2. 量子回路の計算複雑性について

    西村治道

    数学セミナー   Vol. 61 ( 1 ) page: 26 - 31   2022.1

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    Language:Japanese  

Presentations 55

  1. Quantum distributed proofs

    Harumichi Nishimura

    NII Shonan Meeting on New Directions in Provable Quantum Advantage  2023.12 

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    Event date: 2023.12

  2. Distributed Quantum Merlin-Arthur Protocols: Improvement and Extension

    Harumichi Nishimura

    Shenzhen-Nagoya Workshop on Quantum Science 2023  2023.9 

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    Event date: 2023.9

  3. Power of Distributed Quantum Merlin-Arthur Proofs International conference

    Harumichi Nishimura

    SUSTech-Nagoya workshop on Quantum Science  2022.6 

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    Event date: 2022.5 - 2022.6

  4. Simultaneous Message Passing Models and Private Simultaneous Messages Protocols with Shared Entanglement

    Harumichi Nishimura

    3rd Workshop on Quantum and Classical Cryogenic Devices, Circuits, and Systems 

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    Event date: 2021.11

    Language:English  

  5. SMP model, PSM protocols, and their quantum analogues International conference

    Harumichi Nishimura

    SUSTech-Nagoya workshop on Quantum Science 

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    Event date: 2021.6

    Language:English  

  6. Distributed quantum proofs for replicated data International coauthorship International conference

    Pierre Fraigniaud, Francois Le Gall, Harumichi Nishimura, Ami Paz

    24th Annual Conference on Quantum Information Processing  2021.2.5 

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    Event date: 2021.1 - 2021.2

    Presentation type:Oral presentation (general)  

  7. SWAP test and its applications to quantum distribued computing International conference

    Harumichi Nishimura

    2nd Workshop on Quantum and Classical Cryogenic Devices, Circuits, and Systems  2020.12.14 

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    Event date: 2020.12

    Presentation type:Oral presentation (general)  

  8. Distributed quantum proofs for replicated data International coauthorship

    Pierre Fraigniaud, Francois Le Gall, Harumichi Nishimura, Ami Paz

    2020.10.16 

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    Event date: 2020.10

    Presentation type:Oral presentation (general)  

  9. 量子通信複雑性理論 Invited

    西村治道

    京大量子情報ユニット・基研量子情報スクール  2020.7.2 

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    Event date: 2020.6 - 2020.7

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

  10. More approaches for studying classical verification of quantum computation Invited International conference

    Harumichi Nishimura

    1st Workshop on Quantum and Classical Cryogenic Devices, Circuits, and Systems  2019.11.12 

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    Event date: 2019.11

    Presentation type:Oral presentation (invited, special)  

  11. Classical verification for quantum computation Invited International conference

    Harumichi Nishimura

    Workshop on Quantum Protocols  2019.8.9 

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    Event date: 2019.8

    Presentation type:Oral presentation (invited, special)  

  12. Rational proofs for quantum computing

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    Event date: 2019.5

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  13. 合理的なサーバーによる量子計算の検証

    森前智行, 西村治道

    第39回量子情報技術研究会 

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    Event date: 2018.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  14. Interactive proofs with polynomial-time quantum prover for computing the order of solvable groups International conference

    Francois Le Gall, Tomoyuki Morimae, Harumichi Nishimura, Yuki Takeuchi

    18th Asian Quantum Information Science Conference (AQIS2018) 

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    Event date: 2018.9

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  15. Rational proofs for quantum computing International conference

    Tomoyuki Morimae, Harumichi Nishimura

    18th Asian Quantum Information Science Conference (AQIS2018) 

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    Event date: 2018.9

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  16. Interactive proofs with polynomial-time quantum prover for computing the order of solvable groups International conference

    Francois Le Gall, Tomoyuki Morimae, Harumichi Nishimura, Yuki Takeuchi

    43rd International Symposium on Mathematical Foundations of Computer Science (MFCS2018) 

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    Event date: 2018.8

    Language:English   Presentation type:Oral presentation (general)  

    Country:United Kingdom  

    DOI: 10.4230/LIPIcs.MFCS.2018.26

  17. 量子計算量クラスについて Invited

    西村治道

    ImPACT未来開拓研究会2018 

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    Event date: 2018.5 - 2018.6

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Venue:富山   Country:Japan  

  18. make10の一般化について

    佐伯元春, 西村治道

    第13回組合せゲーム・パズル研究集会 

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    Event date: 2018.3

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  19. Merlinization of complexity classes above BQP

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    Event date: 2017.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  20. Modified group nonmembership is in AWPP

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    Event date: 2017.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  21. Power of quantum computation with few clean qubits

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    Event date: 2016.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  22. Space-efficient error reduction for unitary quantum computations International conference

    Bill Fefferman, Hirotada Kobayashi, Cedric Yen-Yu Lin, Tomoyuki Morimae, Harumichi Nishimura

    16th Asian Quantum Information Science Conference (AQIS2016) 

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    Event date: 2016.8 - 2016.9

    Language:English   Presentation type:Oral presentation (general)  

    Country:Taiwan, Province of China  

  23. メモリ限定量子計算量について Invited

    西村治道

    研究会「量子情報と有限張理論の新展開」 

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    Event date: 2016.8

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  24. Power of quantum computation with few clean qubits International conference

    Keisuke Fujii, Hirotada Kobayashi, Tomoyuki Morimae, Harumichi Nishimura, Shuhei Tamate, Seiichiro Tani

    43rd International Colloquium on Automata, Languages, and Programming (ICALP2016) 

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    Event date: 2016.7

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Rome, Italy   Country:Italy  

  25. Space-efficient error reduction for unitary quantum computations International conference

    Bill Fefferman, Hirotada Kobayashi, Cedric Yen-Yu Lin, Tomoyuki Morimae, Harumichi Nishimura

    43rd International Colloquium on Automata, Languages, and Programming (ICALP2016) 

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    Event date: 2016.7

    Language:English   Presentation type:Oral presentation (general)  

    Venue:Rome, Italy   Country:Italy  

  26. Power of quantum computation with few clean qubits International conference

    Harumichi Nishimura

    Workshop around BQP 

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    Event date: 2015.12

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  27. 量子版NPと量子版AMの計算複雑さ

    西村治道

    第33回量子情報技術研究会 

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    Event date: 2015.11

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  28. AWPPの量子計算による解釈

    森前智行, 西村治道

    第33回量子情報技術研究会 

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    Event date: 2015.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  29. クリフォードゲートのみの検証者によるQMA

    森前智行, 林正人, 西村治道, 藤井啓祐

    コンピュテーション研究会 

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    Event date: 2015.10

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  30. AWPPの量子計算による解釈

    森前智行, 西村治道

    コンピュテーション研究会 

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    Event date: 2015.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  31. Impossibility of classical simulating one-clean-qubit computation

    藤井啓祐, 小林弘忠, 森前智行, 西村治道, 玉手修平, 谷誠一郎

    コンピュテーション研究会 

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    Event date: 2015.9

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  32. 量子計算量クラス‐PとNPの量子版とその先

    西村治道

    基礎物理学研究所研究会「量子制御技術の発展により拓かれる量子情報の新時代」 

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    Event date: 2015.7

    Language:Japanese   Presentation type:Oral presentation (keynote)  

    Country:Japan  

  33. Generalized quantum Arthur-Merlin games International conference

    Hirotada Kobayashi, Francois Le Gall, Harumichi Nishimura

    30th Computational Complexity Conference (CCC2015) 

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    Event date: 2015.6

    Language:English   Presentation type:Oral presentation (general)  

    Country:United States  

  34. Quantum algorithms for finding constant-sized sub-hypergraphs International conference

    Francois Le Gall, Harumichi Nishimura, Seiichiro Tani

    18th Workshop on Quantum Information Processing 

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    Event date: 2015.1

    Language:English   Presentation type:Poster presentation  

    Country:Australia  

  35. Generalized quantum Arthur-Merlin games International conference

    Harumichi Nishimura

    Australia-Japan Workshop on Multi-user Quantum Network 

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    Event date: 2014.10

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:Australia  

  36. Generalized quantum Arthur-Merlin games International conference

    Harumichi Nishimura

    ELC Workshop at the University of Tokyo on Quantum Computational Complexity 

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    Event date: 2014.8

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  37. 局所ハミルトニアンの非冗長性の計算量

    川崎涼, 西村治道

    コンピュテーション研究会 

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    Event date: 2014.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  38. Quantum Arthur and quantum Merlin International conference

    Harumichi Nishimura

    5th Nagoya Winter Workshop on Quantum Information, Measurement, and Foundations (NWW2014) 

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    Event date: 2014.3

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  39. 定数サイズ部分ハイパーグラフ発見に対する量子アルゴリズム

    Francois Le Gall, 西村治道, 谷誠一郎

    第29回量子情報技術研究会 

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    Event date: 2013.11

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  40. Stronger methods of making quantum interactive proofs perfectly complete

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    Event date: 2013.6

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  41. Quantum network coding - How can network coding be applied to quantum information? International conference

    Harumichi Nishimura

    The 2013 IEEE International Symposium on Network Coding 

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    Event date: 2013.6

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:Canada  

  42. Quantum algorithms for matrix products over semirings

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    Event date: 2013.5

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  43. 時間ドロボー問題の物質的ゼロ知識証明

    上田圭祐, 西村治道

    2012年冬のLAシンポジウム 

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    Event date: 2013.1

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  44. Towards Perfect Completeness in QMA International conference

    Stephen Jordan, Hirotada Kobayashi, Francois Le Gall, Daniel Nagaj, Harumichi Nishimura.

    16th Workshop on Quantum Information Processing (QIP2013) 

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    Event date: 2013.1

    Language:English   Presentation type:Oral presentation (general)  

    Country:Japan  

  45. 衝突の列挙に関する量子質問計算量

    大和雅英, 西村治道

    第27回量子情報技術研究会 

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    Event date: 2012.11

    Language:Japanese   Presentation type:Poster presentation  

    Country:Japan  

  46. Reducing error probabilities of quantum Merlin-Arthur proof systems International conference

    Harumichi Nishimura

    Japan-Singapore Workshop on Multi-user Quantum Networks 

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    Event date: 2012.9

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:Singapore  

  47. Reconstructing strings from substrings with quantum queries International conference

    Richard Cleve, Kazuo Iwama, Francois Le Gall, Harumichi Nishimura, Seiichiro Tani, Junichi Teruyama, Shigeru Yamashita

    13th Scandinavian Symposium and Workshop 

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    Event date: 2012.7

    Language:English   Presentation type:Oral presentation (general)  

    Country:Finland  

  48. Reconstructing strings from substrings with quantum queries

    Richard Cleve, Kazuo Iwama, Francois Le Gall, Harumichi Nishimura, Seiichiro Tani, Junichi Teruyama, Shigeru Yamashita

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    Event date: 2012.4

    Language:Japanese   Presentation type:Oral presentation (general)  

    Country:Japan  

  49. Improved quantum algorithms for reconstructing strings from substrings International conference

    Richard Cleve, Kazuo Iwama, Francois Le Gall, Harumichi Nishimura, Seiichiro Tani, Junichi Teruyama, Shigeru Yamashita

    5th Annual Meetings of the Asian Association for Algorithms and Computation 

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    Event date: 2012.4

    Language:English   Presentation type:Oral presentation (general)  

    Country:China  

  50. Quantum counterfeit coin problems International conference

    Harumichi Nishimura

    2010 International Workshop on Quantum Information Science 

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    Event date: 2010.3

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  51. Worst-case winning probabilities for the sum of CHSH games International conference

    Harumichi Nishimura

    International Conference on Quantum Information and Technology 2009 

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    Event date: 2009.12

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  52. 古典及び量子通信計算量

    西村治道

    第21回量子情報技術研究会 

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    Event date: 2009.11

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  53. 量子コンピュータに基づく計算量理論とその周辺

    西村治道

    日本数学会 

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    Event date: 2009.9

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  54. Quantum random access coding and its application International conference

    Harumichi Nishimura

    Workshop of Theory on Quantum Computation, Communication and Cryptography 2006 

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    Event date: 2006.2

    Language:English   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

  55. 量子計算機の数理モデルとその計算能力について

    西村治道

    日本数学会 

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    Event date: 2005.9

    Language:Japanese   Presentation type:Oral presentation (invited, special)  

    Country:Japan  

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KAKENHI (Grants-in-Aid for Scientific Research) 9

  1. 量子プロトコル理論の線的展開

    2016.4 - 2021.3

    科学研究費補助金  基盤研究(A)

    小柴健史

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    Authorship:Coinvestigator(s) 

  2. 量子通信及び量子計算を限定した量子対話型証明の解析

    2016.4 - 2020.3

    科学研究費補助金  基盤研究(C)

    西村 治道

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    Authorship:Principal investigator 

  3. 量子論の基礎原理に関する数学的研究

    2014.4 - 2019.3

    科学研究費補助金  基盤研究(A)

    小澤正直

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    Authorship:Coinvestigator(s) 

  4. 量子検証システムの計算量的解析

    2013.4 - 2017.3

    科学研究費補助金  基盤研究(C)

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    Authorship:Principal investigator 

  5. 量子プロトコル理論の深化

    2012.4 - 2017.3

    科学研究費補助金  基盤研究(A)

    小柴健史

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    Authorship:Coinvestigator(s) 

  6. 量子力学からの計算限界解明へのアプローチ

    2012.4 - 2017.3

    科学研究費補助金  新学術領域研究

    山下茂

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    Authorship:Coinvestigator(s) 

  7. マルチユーザ型量子ネットワーク

    2011.4 - 2016.3

    科学研究費補助金  基盤研究(A)

    林正人

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    Authorship:Coinvestigator(s) 

  8. 量子通信計算量とその応用に関する研究

    2010.4 - 2014.3

    科学研究費補助金  若手研究(B)

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    Authorship:Principal investigator 

  9. 量子情報の数学的基礎研究

    2009.4 - 2014.3

    科学研究費補助金  基盤研究(A)

    小澤正直

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    Authorship:Coinvestigator(s) 

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Teaching Experience (On-campus) 13

  1. 情報理論特論

    2016

  2. 数理情報学5

    2016

  3. 数理情報学5

    2015

  4. 微分積分学II

    2015

  5. 微分積分学I

    2015

  6. 数理情報学5

    2014

  7. 線形代数学I

    2014

  8. 情報理論特論

    2014

  9. 数理情報学5

    2013

  10. 線形代数学II

    2013

  11. 線形代数学I

    2013

  12. 線形代数学II

    2012

  13. 情報理論特論

    2012

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