研究者詳細 - 田中　雅光

論文 - 田中　雅光

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Demonstration of low-power shift-register based on half-flux-quantum logic 招待有り査読有り

Masamitsu Tanaka, Toranosuke Nakayama, Shoma Tanemura, Masayuki Higashi, Feng Li, Akira Fujimaki

IEICE Transactions on Electronics E108-C 巻 ( 6 ) 2025年6月

Ferromagnetic π junctions on niobium four-layer structure for superconductor large-scale integrated circuits 査読有り

Akira Fujimaki, Daiki Hasegawa, Yuto Takeshita, Feng Li Taro Yamashita, Masamitsu Tanaka

IEICE Transactions on Electronics E108-C 巻 ( 6 ) 2025年6月

Low-power single-flux-quantum standard cell library using 250 A/cm² process for qubit control applications 査読有り

Masamitsu Tanaka, Yoshihiro Kitagawa, Tetsuro Satoh, Tsuyoshi Yamamoto

35 巻 ( 5 ) 頁： 1700405 2024年12月

C3-VQA: Cryogenic Counter-Based Co-Processor for Variational Quantum Algorithms 査読有り

Yosuke Ueno, Satoshi Imamura, Yuna Tomida, Teruo Tanimoto, Masamitsu Tanaka, Yutaka Tabuchi, Koji Inoue, Hiroshi Nakamura

IEEE Transactions on Quantum Engineering 6 巻頁： 3100317 2024年12月

Intrinsic superconducting phase battery 査読有り

Feng Li, Masayuki Higashi, Taichi Sato, Masamitsu Tanaka, Akira Fujimaki

Applied Physics Letters 124 巻 ( 22 ) 頁： 222601 2024年5月

Investigation of timing margin in single-flux-quantum 4 bit adders for increasing clock frequency of gate-level-pipelined circuits 査読有り

Ikki Nagaoka1, Tomoki Nakano, Ryota Kashima, Masamitsu Tanaka, Taro Yamashita, Akira Fujimaki

Applied Physics Express 17 巻 ( 5 ) 頁： 054501 2024年5月

NbN-based tunnel-type π-junctions for low-power half-flux-quantum circuits 査読有り

Duong Pham, Feng Li, Kenjiro Oba, Yuto Takeshita, Masamitsu Tanaka, Taro Yamashita, Akira Fujimaki

Superconductor Science and Technology 37 巻 ( 5 ) 頁： 055004 2024年5月

Flux transfer circuits breaking conventional limit in transfer coefficient based on a negative inductance of a π-junction 査読有り

Masayuki Higashi, Feng Li, Masamitsu Tanaka and Akira Fujimaki

Superconductor Science and Technology 37 巻 ( 4 ) 頁： 045003 2024年4月

Inter-temperature bandwidth reduction in cryogenic QAOA machines 査読有り

Yosuke Ueno, Yuna Tomida, Teruo Tanimoto, Masamitsu Tanaka, Yutaka Tabuchi, Koji Inoue, and Hiroshi Nakamura

IEEE Computer Architecture Letters 23 巻 ( 1 ) 頁： 9 - 12 2023年10月

Energy efficient half-flux-quantum circuit aiming at milli-kelvin stage operation 査読有り国際誌

F. Li, D. Pham, Y. Takeshita, M. Higashi, T. Yamashita, M. Tanaka, and A. Fujimaki

Superconductor Science and Technology 36 巻 ( 10 ) 頁： 105006 2023年10月

High-frequency operation of low-power single-flux-quantum circuits fabricated using 250 A/cm² Nb/AlOx/Nb planarization process 査読有り

Masamitsu Tanaka, Yoshihiro Kitagawa, Tetsuro Satoh, and Tsuyoshi Yamamoto

2023 International Conference on IC Design and Technology (ICICDT) 頁： 84 - 87 2023年9月

Analysis of the effect of 0-π SQUIDs for enhancing mutual coupling 査読有り国際誌

Masayuki Higashi, Yuto Takeshita, Kento Kato, Hinata Fujisawa, Feng Li, Masamitsu Tanaka, Taro Yamashita, and Akira Fujimaki

IEEE Transactions on Applied Superconductivity 33 巻 ( 5 ) 頁： 1600805 2023年8月

Lowering Latency in a High-Speed Gate-Level-Pipelined Single Flux Quantum Datapath Using an Interleaved Register File 招待有り査読有り国際誌

Ryota Kashima, Ikki Nagaoka, Tomoki Nakano, Masamitsu Tanaka, Taro Yamashita, and Akira Fujimaki

IEEE Transactions on Applied Superconductivity 33 巻 ( 5 ) 頁： 1303306 2023年8月

Fabrication process for monolithic integration of a nitride superconductor-based superconducting qubit with a single flux quantum control circuit 査読有り国際誌

Shigeyuki Miyajima, Taro Yamashita, Masamitsu Tanaka, Naoki Takeuchi, Kunihiro Inomata, and Hirotaka Terai

IEEE Transactions on Applied Superconductivity 33 巻 ( 5 ) 頁： 1100204 2023年8月

Design and fabrication of low-power single-flux-quantum circuits toward quantum bit control 査読有り国際誌

Masamitsu Tanaka, Yoshihiro Kitagawa, Tetsuro Satoh, and Tsuyoshi Yamamoto

IEEE Transactions on Applied Superconductivity 33 巻 ( 5 ) 頁： 1700805 2023年8月

Optimization of half-flux-quantum circuits composed of π-shift and conventional Josephson junctions 査読有り国際誌

S. Tanemura, Y. Takeshita, F. Li, T. Nakayama, M. Tanaka, and A. Fujimaki

IEEE Transactions on Applied Superconductivity 33 巻 ( 5 ) 頁： 1701305 2023年8月

QIsim: Architecting 10+ K qubit QC interfaces toward quantum supremacy 査読有り国際共著

D. Min, J. Kim, J. Choi, I. Byun, M. Tanaka, K. Inoue, and J. Kim

Proceedings of the 50th Annual International Symposium on Computer Architecture (ISCA '23) 頁： 1 - 16 2023年6月

Circuit designs for practical-scale fault-tolerant quantum computing 招待有り査読有り

Y. Suzuki, Y. Ueno, W. Liao, M. Tanaka, and T. Tanimoto

2023 IEEE Symposium on VLSI Technology and Circuits (VLSI Technology and Circuits) 頁： 1 - 2 2023年6月

50-GFLOPS floating-point adder and multiplier using gate-level-pipelined single-flux-quantum logic with frequency-increased clock distribution 査読有り国際誌

Ikki Nagaoka, Ryota Kashima, Masamitsu Tanaka, Satoshi Kawakami, Teruo Tanimoto, Taro Yamashita, Koji Inoue, and Akira Fujimaki

IEEE Transactions on Applied Superconductivity 33 巻 ( 4 ) 頁： 1302711 2023年6月

Execution of stored programs by a rapid single-flux-quantum random-access-memory-embedded bit-serial microprocessor using 50-GHz clock frequency 査読有り国際誌

M. Tanaka, R. Sato, A. Fujimaki, K. Takagi, and N. Takagi

Applied Physics Letters 122 巻 ( 19 ) 頁： 192601 2023年5月

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