研究業績

論文

2026

  1. Microwave-to-Optical Quantum Transduction via Defect-Mediated Scattering in Diamond
    Kyosuke Goto, Hodaka Kurokawa, Hideo Kosaka, and Kazuki Koshino
    arXiv:2605.15988
    DOI: 10.48550/arXiv.2605.15988
  2. Scalable on-chip integration of diamond color centers for cryogenic quantum photonics
    H. Kurokawa, K. Sato, M. Kamata, S. Ishida, H. Matsukiyo, N. Pholsen, M. Nishioka, S. Ji, H. Otsuki, S. Hachuda, M. Kunii, T. Tamanuki, K. Kimura, K. Takenaka, Y. Sekiguchi, S. Onoda, S. Iwamoto, T. Baba, and H. Kosaka
    arXiv:2604.06984
    DOI: 10.48550/arXiv.2604.06984
  3. The future of quantum technology as seen from the EU, USA and Japan: experts’ vision over the next two decades
    D. Z. Anderson, P. Chomaz, S. Takeuchi, Y. Arakawa, Y. Baba, O. Benson, K.-A. Brickman Soderberg, E. Diamanti, D. Elkouss, K. Fujii, A. Furusawa, E. Gouzien, H. Katori, S. Kawabata, T. Kawahara, H. Kosaka, M. Marinkovic, Y. Miyamoto, N. Mizuochi, M. Murao, K. Nemoto, K. Ohmori, T. Ohshima, E. Polzik, M. Radulaski, N. Sangouard, Y. Takahashi, U. Tanaka, S. Tarucha, P. Villoresi, N. Yu, and J. Zivy
    J. Phys. B: At. Mol. Opt. Phys. 59 071001
    DOI: 10.1088/1361-6455/ae271a
  4. Spatially Resolved Optical Responses of a Superconducting Nanowire Microwave Resonator
    Rento Hirotsuru, Hodaka Kurokawa, Kazuyo Takaki, Hirotaka Terai, and Hideo Kosaka
    arXiv:2504.05899v2 ➡ Phys. Rev. Lett. 136, 086901 (2026)
    DOI: 10.1103/fnfl-xjrz
  5. Quantum teleportation of a photon via absorption and emission for quantum repeater nodes
    Raustin Reyes, Yuhei Sekiguchi, Daisuke Ito, Taichi Fujiwara, Kansei Watanabe, Toshiharu Makino, Hiromitsu Kato, and Hideo Kosaka
    npj Quantum Inf 12, 25 (2026).
    DOI: 10.1038/s41534-025-01169-9

2025

  1. Modular interface for efficient optical readout of diamond quantum memory at cryogenic temperatures via single-mode optical fibers
    Akira Kamimaki, Yuhei Sekiguchi, Daisuke Ito, Taichi Fujiwara, Toshiharu Makino, Hiromitsu Kato, and Hideo Kosaka
    arXiv:2510.07032
    DOI: 10.48550/arXiv.2510.07032
  2. Robust transfer of a quantum state from an absorbed photon into a diamond spin
    Daisuke Ito, Yuhei Sekiguchi, Raustin Reyes, Taichi Fujiwara, Toshiharu Makino, Hiromitsu Kato, and Hideo Kosaka
    arXiv:2505.09292 ➡ Opt. Lett. 50, 5073-5076 (2025)
    DOI: 10.1364/OL.567933

2024

  1. Quantum Orbital-State Control of a Neutral Nitrogen-Vacancy Center at Millikelvin Temperatures
    Hodaka Kurokawa, Shintaro Nakazato, Toshiharu Makino, Hiromitsu Kato, Shinobu Onoda, Yuhei Sekiguchi, and Hideo Kosaka
    arXiv:2411.17187 ➡ Phys. Rev. Lett. 135, 016902 (2025)
    DOI: 10.1103/m1qx-xlpd
  2. Coherent electric field control of orbital state of a neutral nitrogen-vacancy center
    Hodaka Kurokawa, Keidai Wakamatsu, Shintaro Nakazato, Toshiharu Makino, Hiromitsu Kato, Yuhei Sekiguchi and Hideo Kosaka
    Nature Communications 15, 4039 (2024)
    DOI: 10.1038/s41467-024-50127-0

 

2023

  1. Deterministic Bell state measurement with a single quantum memory
    Akira Kamimaki, Keidai Wakamatsu, Kosuke Mikata, Yuhei Sekiguchi and Hideo Kosaka
    npj Quantum Information 9, 101 (2023) 
    DOI: 10.1038/s41534-023-00771-z
  2. Diamond optomechanical cavity with a color center for coherent microwave-to-optical quantum interfaces
    Byunggi Kim, Hodaka Kurokawa, Katsuta Sakai, Kazuki Koshino, Hideo Kosaka, and Masahiro Nomura
    Phys. Rev. Applied 20, 044037 (2023)
    DOI: 10.1103/PhysRevApplied.20.044037
  3. Low-temperature characteristics of an AlN/Diamond surface acoustic wave resonator
    Moyuki Yamamoto, Hodaka Kurokawa, Satoshi Fujii, Toshiharu Makino, Hiromitsu Kato, and Hideo Kosaka
    arXiv:2307.10271➡ J. Appl. Phys. 134, 215104 (2023)
    DOI: 10.1063/5.0165383

2022

  1. Remote Entanglement of Superconducting Qubits via Solid-State Spin Quantum Memories
    Hodoka Kurokawa, Moyuki Yamamoto, Yuhei Sekiguchi, and Hideo Kosaka
    Phys. Rev. Applied 18, 064039 (2022)
  2. Deterministic Bell state measurement with a single quantum memory
    Akira Kamimaki, Keidai Wakamatsu, Kosuke Mikata, Yuhei Sekiguchi, and Hideo Kosaka
    arXiv:2209.14686 ➡ npj Quantum Information 9, 101 (2023) 
  3. Optically addressable universal holonomic quantum gates on diamond spins
    Yuhei Sekiguchi, Kazuki Matsushita, Yoshiki Kawasaki, and Hideo Kosaka
    Nature Photonics 16, 662 (2022)
    Press release: YNU, JST, EurekAlert! (English), EurekAlert! (日本語), Physics World
    News: 日本経済新聞, 日刊工業新聞                                                                                  

  4. Backward propagating quantum repeater protocol with multiple quantum memories
    Yuhei Sekiguchi, Satsuki Okumura, and Hideo Kosaka
    arXiv:2205.04243
  5. Complete Bell state measurement of diamond nuclear spins under a complete spatial symmetry at zero magnetic field
    Raustin Reyes, Takaya Nakazato, Nobuaki Imaike, Kazuyasu Matsuda, Kazuya Tsurumoto, Yuhei Sekiguchi, and Hideo Kosaka
    Appl. Phys. Lett. 120, 194002 (2022)
  6. Quantum error correction of spin quantum memories in diamond under a zero magnetic field
    Takaya Nakazato, Raustin Reyes, Nobuaki Imaike, Kazuyasu Matsuda, Kazuya Tsurumoto, Yuhei Sekiguchi, and Hideo Kosaka
    Communications Physics 5, 102 (2022)
    Press release: YNU, JST, EurekAlert! (English), EurekAlert! (日本語), Physics World
    News: 日本経済新聞

2021

  1. Geometric entanglement of a photon and spin qubits in diamond
    Yuhei Sekiguchi, Yuki Yasui, Kazuya Tsurumoto,Yuta Koga, Raustin Reyes, and Hideo Kosaka
    Communications Physics 4, 264 (2021)
    Press release: YNU, JST, EurekAlert! (English), EurekAlert! (日本語) ,
    News: 日本経済新聞

2019

  1. Dynamical Decoupling of a Geometric Qubit
    Yuhei Sekiguchi, Yusuke Komura, and Hideo Kosaka
    Phys. Rev. Applied 12, 051001 (2019)
  2. Quantum teleportation-based state transfer of photon polarization into a carbon spin in diamond
    Kazuya Tsurumoto, Ryota Kuroiwa, Hiroki Kano, Yuhei Sekiguchi, and Hideo Kosaka
    Communications Physics 2, 74 (2019)
    Press release: YNU, JST, EurekAlert! (English), EurekAlert! (日本語)
    News: 日本経済新聞, 日刊工業新聞

2018

  1. Universal holonomic quantum gates over geometric spin qubits with polarised microwaves
    Kodai Nagata, Kouyou Kuramitani, Yuhei Sekiguchi, and Hideo Kosaka
    Nature Communications 9, 3227 (2018)
    Press release: YNU, JST, EurekAlert! (English),EurekAlert! (日本語)
    News: 日本経済新聞 
  2. Universal holonomic single quantum gates over a geometric spin with phase-modulated polarized light
    Naoki Ishida, Takaaki Nakamura, Touta Tanaka, Shota Mishima, Hiroki Kano, Ryota Kuroiwa,
    Yuhei Sekiguchi, and Hideo Kosaka
    Optics Letters 43, 2380-2383 (2018)
    Press release: YNU
  3. Two-step frequency conversion for connecting distant quantum memories by transmission through an optical fiber
    Shuhei Tamura, Kohei Ikeda, Kotaro Okamura, Kazumichi Yoshii, Feng-lei Hong, Tomoyuki Horikiri, and Hideo Kosaka
    Jpn. J. Appl. Phys. 57, 062801 (2018)
  4. Ultrabright narrow-band telecom two-photon source for long-distance quantum communication
    Kazuya Niizeki, Kohei Ikeda, Mingyang Zheng, Xiuping Xie, Kotaro Okamura, Nobuyuki Takei, Naoto Namekata, Shuichiro Inoue, Hideo Kosaka, and Tomoyuki Horikiri
    Appl. Phys. Express 11, 042801 (2018)

2017

  1. Optical holonomic single quantum gates with a geometric spin under a zero field
    Yuhei Sekiguchi, Naeko Niikura, Ryota Kuroiwa, Hiroki Kano, and Hideo Kosaka
    Nature Photonics 11, 309-314 (2017)
    Press release: YNU
    News:日本経済新聞, 日刊工業新聞

2016

  1. High fidelity transfer and storage of photon states in a single nuclear spin
    Sen Yang, Ya Wang, Thai Hien Tran, S. Ali Momenzadeh, M. Markham, D. J. Twitchen, Rainer Stohr, Philipp Neumann, Hideo Kosaka, and Jorg Wrachtrup
    Nature Photonics 10, 507-511 (2016)
    Press release: YNU
  2. Geometric spin echo under zero field
    Yuhei Sekiguchi, Yusuke Komura, Shota Mishima, Touta Tanaka, Naeko Niikura, and Hideo Kosaka
    Nature Communications 7, 11668 (2016)
    Press release: YNU

2015

  1. Entangled Absorption of a Single Photon with a Single Spin in Diamond
    Hideo Kosaka and Naeko Niikura
    Phys. Rev. Lett. 114, 053603 (2015)
    Press release: YNU
  2. Absorption-based Quantum Communication with NV centres
    Burkhard Scharfenberger, Hideo Kosaka, William Munro, and Kae Nemoto,
    New J. Phys. 17, 103012 (2015)
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