論文 - 上牧 瑛
件数 12 件-
Deterministic Bell state measurement with a single quantum memory
Akira Kamimaki, Keidai Wakamatsu, Kosuke Mikata, Yuhei Sekiguchi, Hideo Kosaka
npj Quantum Information 9 2023年10月 [査読有り]
担当区分：筆頭著者 記述言語：英語 掲載種別：研究論文（学術雑誌） 出版者・発行元：Springer Nature 共著
Entanglements serve as a resource for any quantum information system and are deterministically generated or swapped by a joint measurement called complete Bell state measurement (BSM). The determinism arises from a quantum nondemolition measurement of two coupled qubits with the help of readout ancilla, which inevitably requires extra physical qubits. We here demonstrate a deterministic and complete BSM with only a nitrogen atom in a nitrogen-vacancy (NV) center in diamond as a quantum memory without relying on any carbon isotopes, which are the extra qubits, by exploiting electron‒nitrogen (14N) double qutrits at a zero magnetic field. The degenerate logical qubits within the subspace of qutrits on the electron and nitrogen spins are holonomically controlled by arbitrarily polarized microwave and radiofrequency pulses via zero-field-split states as the ancilla, thus enabling the complete BSM deterministically. Since the system works under an isotope-free and field-free environment, the demonstration paves the way to realize high-fidelity quantum repeaters for long-haul quantum networks and quantum interfaces for large-scale distributed quantum computers.
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Tunable magnon-magnon coupling in synthetic antiferromagnets
Sud A., Zollitsch C. W., Kamimaki A., Dion T., Khan S., Iihama S., Mizukami S., Kurebayashi H.
PHYSICAL REVIEW B 102 ( 10 ) 2020年9月 [査読有り]
記述言語：英語 掲載種別：研究論文（学術雑誌） 共著
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Parametric Amplification of Magnons in Synthetic Antiferromagnets
Kamimaki A., Iihama S., Suzuki K. Z., Yoshinaga N., Mizukami S.
PHYSICAL REVIEW APPLIED 13 ( 4 ) 2020年4月 [査読有り]
担当区分：筆頭著者 記述言語：英語 掲載種別：研究論文（学術雑誌） 共著
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Information Processing Capacity of Spintronic Oscillator
Sumito Tsunegi, Tomoyuki Kubota, Akira Kamimaki, Julie Grollier, Vincent Cros, Kay Yakushiji, Akio … 全著者表示
Sumito Tsunegi, Tomoyuki Kubota, Akira Kamimaki, Julie Grollier, Vincent Cros, Kay Yakushiji, Akio Fukushima, Shinji Yuasa, Hitoshi Kubota, Kohei Nakajima, Tomohiro Taniguchi 閉じる
Advanced Intelligent Systems 2023年6月 [査読有り]
記述言語：英語 掲載種別：研究論文（学術雑誌） 単著
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Chaos in spin-torque oscillator with feedback circuit
Akira Kamimaki, Tomoyuki Kubota, Sumito Tsunegi, Kohei Nakajima, Tomohiro Taniguchi, Julie Grollier … 全著者表示
Akira Kamimaki, Tomoyuki Kubota, Sumito Tsunegi, Kohei Nakajima, Tomohiro Taniguchi, Julie Grollier, Vincent Cros, Kay Yakushiji, Akio Fukushima, Shinji Yuasa, and Hitoshi Kubota 閉じる
PHYSICAL REVIEW RESEARCH 2021年12月 [査読有り]
担当区分：筆頭著者 記述言語：英語 掲載種別：研究論文（学術雑誌） 共著
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Laser-induced terahertz emission from layered synthetic magnets
Ogasawara Yuma, Sasaki Yuta, Iihama Satoshi, Kamimaki Akira, Suzuki Kazuya Z., Mizukami Shigemi
APPLIED PHYSICS EXPRESS 13 ( 6 ) 2020年6月 [査読有り]
記述言語：英語 掲載種別：研究論文（学術雑誌） 共著
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All-optical detection and evaluation of magnetic damping in synthetic antiferromagnet
Kamimaki Akira, Iihama Satoshi, Taniguchi Tomohiro, Mizukami Shigemi
APPLIED PHYSICS LETTERS 115 ( 13 ) 2019年9月 [査読有り]
記述言語：英語 掲載種別：研究論文（学術雑誌） 共著
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Synthesis of metastable B2-type Fe-Sn alloy epitaxial films and study of their magnetic properties
Goto Yuki, Araki Masato, Takahashi Nozomi, Yanase Takashi, Shimada Toshihiro, Tsujikawa Masahito, S … 全著者表示
Goto Yuki, Araki Masato, Takahashi Nozomi, Yanase Takashi, Shimada Toshihiro, Tsujikawa Masahito, Shirai Masafumi, Kamimaki Akira, Iihama Satoshi, Mizukami Shigemi, Nagahama Taro 閉じる
JAPANESE JOURNAL OF APPLIED PHYSICS 57 ( 12 ) 2018年12月 [査読有り]
記述言語：英語 掲載種別：研究論文（学術雑誌） 共著
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Kamimaki Akira, Iihama Satoshi, Sasaki Yuta, Ando Yasuo, Mizukami Shigemi
IEEE TRANSACTIONS ON MAGNETICS 53 ( 11 ) 2017年11月 [査読有り]
記述言語：英語 掲載種別：研究論文（学術雑誌） 共著
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Kamimaki A., Iihama S., Sasaki Y., Ando Y., Mizukami S.
PHYSICAL REVIEW B 96 ( 1 ) 2017年7月 [査読有り]
記述言語：英語 掲載種別：研究論文（学術雑誌） 共著
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All-optical detection of magnetization precession in tunnel junctions under applied voltage
Sasaki Yuta, Suzuki Kazuya, Sugihara Atsushi, Kamimaki Akira, Iihama Satoshi, Ando Yasuo, Mizukami … 全著者表示
Sasaki Yuta, Suzuki Kazuya, Sugihara Atsushi, Kamimaki Akira, Iihama Satoshi, Ando Yasuo, Mizukami Shigemi 閉じる
APPLIED PHYSICS EXPRESS 10 ( 2 ) 2017年2月 [査読有り]
記述言語：英語 掲載種別：研究論文（学術雑誌） 共著
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Quantification of a propagating spin-wave packet created by an ultrashort laser pulse in a thin film of a magnetic metal
S Iihama, Y Sasaki, A Sugihara, A Kamimaki, Y Ando, S Mizukami
Physical Review B 2016年7月 [査読有り]
記述言語：英語 掲載種別：研究論文（学術雑誌） 共著