Collective quantum information processes using quantum entanglement of ensemble nuclear spins in semiconductor nanostructures

• Project/Area Number: 21241024
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Nanostructural science
• Research Institution: Tohoku University
• Principal Investigator: YUSA Go 東北大学, 大学院・理学研究科, 准教授 (40393813)
• Project Period (FY): 2009 – 2011
• Project Status: Completed (Fiscal Year 2011)
• Budget Amount: ¥48,230,000 (Direct Cost: ¥37,100,000、Indirect Cost: ¥11,130,000); Fiscal Year 2011: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000); Fiscal Year 2010: ¥7,930,000 (Direct Cost: ¥6,100,000、Indirect Cost: ¥1,830,000); Fiscal Year 2009: ¥34,320,000 (Direct Cost: ¥26,400,000、Indirect Cost: ¥7,920,000)
• Keywords: 量子情報 / ナノ科学 / ナノ構造 / 核磁気共鳴

Research Abstract

This research project aims for new quantum information processing based on collective quantum systems. During the project term, we obtained a wide variety of results : A proposal of a method to access nuclear spin information in a microscopic region, a proposal and theoretical verification of a new quantum protocol termed quantum energy teleportation using quantum Hall edge channels, real-space imaging of the quantum Hall systems.

Research Products

• [Journal Article] Passivity breaking of a local vacuum state in a quantum Hall system (2011)
  • Author(s): G. Yusa, W. Izumida, M. Hotta
  • Journal Title: Quantum-ph, arXiv : 1101, 2766v1-1 Volume: 4
• [Journal Article] Quantum energy teleportation in a quantum Hall system (2011)
  • Author(s): G. Yusa, W. Izumida, M. Hotta
  • Journal Title: Phys. Rev. A 84 Volume: 6 Pages: 32336-1
  • Peer Reviewed
• [Journal Article] Quantum energy teleportation in a quantum Hall system (2011)
  • Author(s): G.Yusa, W.Izumida, M.Hotta
  • Journal Title: Physical Review A Volume: 84 Issue: 3
  • DOI: 10.1103/physreva.84.032336
  • Peer Reviewed
• [Journal Article] Passivity breaking of a local vacuum state in a quantum Hall system (2011)
  • Author(s): G.Yusa, W.Izumida, M.Hotta
  • Journal Title: Quantum-ph Volume: arXiv:1101
• [Journal Article] Imaging of multinuclear spin system (I > 1/2)in semiconductor microstructures using longitudinal-magnetization-detection nuclear magnetic resonance (2010)
  • Author(s): T. Kawamura, G. Yusa
  • Journal Title: Applied Physics Letters Volume: 3 Pages: 112108-1
  • Peer Reviewed
• [Journal Article] Imaging of multinuclear spin system(I>1/2)in semiconductor microstructures using longitudinal-magnetization-detection nuclear magnetic resonance (2010)
  • Author(s): T.Kawamura, G.Yusa
  • Journal Title: Applied Physics Letters Volume: 97 Pages: 112108-13
  • Peer Reviewed
• [Presentation] 分数量子ホール状態の実空間観察 (2012)
  • Author(s): 早川純一朗、村木康二、遊佐剛
  • Organizer: 日本物理学会67回年次大会
  • Place of Presentation: 関西学院大学、西宮
  • Year and Date: 2012-03-27
• [Presentation] 量子ホール系と核スピン (2011)
  • Author(s): 遊佐剛
  • Organizer: 第181回日本磁気学会研究会
  • Place of Presentation: お茶の水東京
  • Year and Date: 2011-12-07
• [Presentation] 量子ホール系と核スピン (2011)
  • Author(s): 遊佐剛
  • Organizer: 第181回日本磁気学会研究会
  • Place of Presentation: お茶の水
  • Year and Date: 2011-12-07
• [Presentation] Passivity breaking in the quantum Hall system (2011)
  • Author(s): G.Yusa, W.Izumida, M.Hotta
  • Organizer: The 19^<th> international conference on Electronic Properties of Two-dimensional Systems
  • Place of Presentation: タラハシーアメリカ
  • Year and Date: 2011-07-27
• [Presentation] Passivity breaking in the quantum Hall system (2011)
  • Author(s): G. Yusa, W. Izumida, M. Hotta
  • Organizer: The 19th international conference on Electronic Properties of Two-Dimensional Systems (EP2DS)
  • Place of Presentation: タラハシー, アメリカ
  • Year and Date: 2011-07-26
• [Presentation] ν=2/3スピン相転移近傍での円偏光顕微フォトルミネッセンス (2011)
  • Author(s): 早川純一朗、村木康二、遊佐剛
  • Organizer: 日本物理学会66回年次大会
  • Place of Presentation: 新潟大学, 新潟
  • Year and Date: 2011-03-25
• [Presentation] nu=2/3スピン相転移近傍での円偏光顕微フォトルミネッセンス (2011)
  • Author(s): 早川純一朗、村木康二、遊佐剛
  • Organizer: 日本物理学会66回年次大会
  • Place of Presentation: 新潟大学新潟
  • Year and Date: 2011-03-25
• [Presentation] Optical studies of the spin-phase transtion in the ν=2/3 fractional quantum Hall state (2011)
  • Author(s): J. Hayakawa, K. Muraki, G. Yusa
  • Organizer: International Symposium on Nanoscale Transport and Technology
  • Place of Presentation: NTT物性基礎研究所
  • Year and Date: 2011-01-14
• [Presentation] Optical studies of the spin-phase transtion in the nu=2/3 fractional quantum Hall state (2011)
  • Author(s): J.Hayakawa, K.Muraki, G.Yusa
  • Organizer: International Symposium on Nanoscale Transport and Technology
  • Place of Presentation: NTT物性基礎研究所厚木
  • Year and Date: 2011-01-14
• [Presentation] Imaging method for microscopic multi-nuclear spin systems (I > 1/2)using longitudinal-magnetization-detection nuclear magnetic resonance (2011)
  • Author(s): T. Kawamura, G. Yusa
  • Organizer: International Symposium on Nanoscale Transport and Technology
  • Place of Presentation: NTT物性基礎研究所, 厚木
  • Year and Date: 2011-01-12
• [Presentation] Imaging method for microscopic multi-nuclear spin systems (I>1/2) using longitudinal-magnetization-detection nuclear magnetic resonance (2011)
  • Author(s): T.Kawamura, G.Yusa
  • Organizer: International Symposium on Nanoscale Transport and Technology
  • Place of Presentation: NTT物性基礎研究所厚木
  • Year and Date: 2011-01-12
• [Presentation] Trionと量子ホール系の分光 (2010)
  • Author(s): 遊佐剛
  • Organizer: 日本物理学会2010年春季大会シンポジウム
  • Place of Presentation: 岡山大学, 岡山
  • Year and Date: 2010-03-21
• [Presentation] Trionと量子ホール系の分光 (2010)
  • Author(s): 遊佐剛
  • Organizer: 日本物理学会2010年春季大会シンポジウム
  • Place of Presentation: 岡山大学 岡山
  • Year and Date: 2010-03-21
• [Presentation] ν=2/3スピン相転移の顕微フォトルミネッセンス (2010)
  • Author(s): 早川純一朗他
  • Organizer: 日本物理学会2010年春季大会
  • Place of Presentation: 岡山大学, 岡山
  • Year and Date: 2010-03-20
• [Presentation] v=2/3スピン相転移の顕微フォトルミネッセンス (2010)
  • Author(s): 早川純一朗
  • Organizer: 日本物理学会2010年春季大会
  • Place of Presentation: 岡山大学 岡山
  • Year and Date: 2010-03-20
• [Presentation] Micro-photoluminescence around spin phase transition of ν=2/3 fractional quantum Hall regime (2010)
  • Author(s): J. Hayakawa, 他
  • Organizer: The 2nd GCOE International Symphosium on"Weaving Science Web beyond Particle-Matter Hierarchy"
  • Place of Presentation: 東北大学, 仙台
  • Year and Date: 2010-02-19
• [Presentation] Micro-photoluminescence around spin phase transition of n=2/3 fractional quantum Hall regime (2010)
  • Author(s): 早川純一朗
  • Organizer: The 2nd GCOE International Symphosium on"Weaving Science Web beyond Particle-Matter Hierarchy"
  • Place of Presentation: 東北大学 仙台
  • Year and Date: 2010-02-19
• [Presentation] Electrically controlled quantum coherence of nuclear spins in GaAs point contacts IVth International Workshop on the Physics of Semiconductor Devices (2009)
  • Author(s): G. Yusa
  • Place of Presentation: デリー、インド
  • Year and Date: 2009-12-17
• [Presentation] Electrically controlled quantum coherence of nuclear spins in GaAs point contacts (2009)
  • Author(s): 遊佐剛
  • Organizer: IVth International Workshop on the Physics of Semiconductor Devices
  • Place of Presentation: デリー、インド
  • Year and Date: 2009-12-17
• [Presentation] Local nuclear spin detection using unconventional nuclear magnetic resonance (2009)
  • Author(s): T. Kawamura, G. Yusa
  • Organizer: RIEC-CNSI Workshop on Nanoelectronics, Spintronics and Photonics
  • Place of Presentation: 東北大学, 仙台
  • Year and Date: 2009-10-22
• [Presentation] Local nuclear spin detection using unconventional nuclear magnetic resonance (2009)
  • Author(s): T.Kawamura
  • Organizer: RIEC-CNSI Workshop on Nanoelectronics, Spintronics and Photonics
  • Place of Presentation: 東北大学 仙台
  • Year and Date: 2009-10-22
• [Presentation] Trionと量子ホール系の分光半導体における動的相関電子系の光科学 (2009)
  • Author(s): 遊佐剛
  • Organizer: 第2回シンポジウム
  • Place of Presentation: 京都大学, 京都
  • Year and Date: 2009-08-21
• [Presentation] Trionと量子ホール系の分光 (2009)
  • Author(s): 遊佐剛
  • Organizer: 半導体における動的相関電子系の光科学 第2回シンポジウム
  • Place of Presentation: 京都大学 京都
  • Year and Date: 2009-08-21
• [Patent(Industrial Property Rights)] 分光計測装置 (2011)
  • Inventor(s): 村木康二、早川純一朗、遊佐剛
  • Industrial Property Rights Holder: 日本電信電話(株)
  • Industrial Property Number: 2011-221545
  • Filing Date: 2011-10-06
• [Patent(Industrial Property Rights)] 分光計測装置 (2010)
  • Inventor(s): 村木康二、早川純一朗、遊佐剛
  • Industrial Property Rights Holder: 日本電信電話(株)
  • Industrial Property Number: 2010-223607
  • Filing Date: 2010-10-01