Rchr
J-GLOBAL ID：201101019464795714   Update date: Nov. 21, 2024

Koashi Masato

コアシ マサト | Koashi Masato
Affiliation and department：
東京大学 大学院工学系研究科

About 東京大学 大学院工学系研究科


Job title： 教授
Homepage URL  (1)： http://kaken.nii.ac.jp/ja/r/90322099
Research field  (1)： Semiconductors, optical and atomic physics
Research keywords  (15)： 量子演算 ,  2光子干渉 ,  デコヒーレンス ,  線形光学量子演算 ,  量子光学 ,  量子コンピューティング ,  量子暗号 ,  量子情報処理 ,  無条件安全性 ,  量子鍵配送 ,  パラメトリック光子対 ,  相補性 ,  不確定性関係 ,  量子情報 ,  エンタングルメント
Research theme for competitive and other funds  (10)：
  • 2013 - 2016 Quantum interfaces for hybrid quantum information processing
  • 2011 - 2014 Quantum information technology based on wavelength conversion of a photon
  • 2009 - 2014 Light-based multi-qubit quantum control
  • 2009 - 2014 Quantum Cybernetics Steering Committee
  • 2008 - 2010 Quantum information processing based on complementarity in quantum mechanics
Show all
Papers (180)：
  • Shinichiro Yamano, Takaya Matsuura, Yui Kuramochi, Toshihiko Sasaki, Masato Koashi. Finite-size security proof of binary-modulation continuous-variable quantum key distribution using only heterodyne measurement. Physica Scripta. 2024. 99. 2. 025115-025115
  • Hayata Yamasaki, Masato Koashi. Time-Efficient Constant-Space-Overhead Fault-Tolerant Quantum Computation. Nature Physics. 2024. 20. 2. 247-253
  • Takaya Matsuura, Shinichiro Yamano, Yui Kuramochi, Toshihiko Sasaki, Masato Koashi. Refined finite-size analysis of binary-modulation continuous-variable quantum key distribution. Quantum. 2023. 7. 1095-1095
  • Yoshifumi Nakata, Eyuri Wakakuwa, Masato Koashi. Black holes as clouded mirrors: the Hayden-Preskill protocol with symmetry. Quantum. 2023. 7. 928-928
  • Hongyi Zhou, Toshihiko Sasaki, Masato Koashi. Numerical method for finite-size security analysis of quantum key distribution. Physical Review Research. 2022. 4. 3
ｍore...
MISC (58)：
  • Quantum Cryptography Based on a New Principle. 2015. 44. 12. 482-487
  • Kobayashi Toshiki, Yasui Shuto, Ikuta Rikizo, Miki Shigehito, Yamashita Taro, Fujiwara Mikio, Yamamoto Takashi, Koashi Masato, Sasaki Masahide, Wang Zhen, et al. 9aAZ-3 Observation of two-photon interference by using a frequency-domain beamsplitter. Meeting abstracts of the Physical Society of Japan. 2014. 69. 2. 83-83
  • Yasui Shuto, Ikuta Rikizo, Kobayashi Toshiki, Miki Shigehito, Yamashita Taro, Terai Hirotaka, Fujiwara Mikio, Yamamoto Takashi, Koashi Masato, Sasaki Masahide, et al. 9aAZ-4 Frequency down-conversion of 637 nm light to the telecommunication band for non-classical light emitted from NV centers in diamond. Meeting abstracts of the Physical Society of Japan. 2014. 69. 2. 83-83
  • Ikemachi Takuya, Ito Aki, Horikoshi Munekazu, Koashi Masato, Kuwata-Gonokami Makoto. 9aAW-7 Determination of the universal equation of state of s-wave interacting Fermi many-body system. Meeting abstracts of the Physical Society of Japan. 2014. 69. 2. 80-80
  • Ikuta Rikizo, Kobayashi Toshiki, Kato Hiroshi, Miki Shigehito, Yamashita Taro, Terai Hirotaka, Fujiwara Mikio, Yamamoto Takashi, Koashi Masato, Sasaki Masahide, et al. 9aAZ-2 Observation of two output light pulses from a partial wavelength converter preserving phase of an input light at a single-photon level. Meeting abstracts of the Physical Society of Japan. 2014. 69. 2. 82-82
ｍore...
Work history (5)：
  • 2011/04 - 現在 The University of Tokyo The Graduate School of Engineering
  • 2007/04 - 2011/03 Osaka University Graduate School of Engineering Science
  • 2004/04 - 2007/03 Osaka University Graduate School of Engineering Science
  • 1999/10 - 2004/03 The Graduate University for Advanced Studies School of Advanced Sciences
  • 1995/12 - 1999/09 日本電信電話株式会社
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