Theoretical analysis of optical responses of semiconductor quantum structures for realization of coherent optical spin manipulations

• Project/Area Number: 20810042
• Research Category: Grant-in-Aid for Young Scientists (Start-up)
• Allocation Type: Single-year Grants
• Research Field: Nanostructural science
• Research Institution: Sendai National College of Technology
• Principal Investigator: RIKITAKE Yoshiaki Sendai National College of Technology, 情報システム工学科, 助教 (50515145)
• Project Period (FY): 2008 – 2009
• Project Status: Completed (Fiscal Year 2009)
• Budget Amount: ¥3,263,000 (Direct Cost: ¥2,510,000、Indirect Cost: ¥753,000); Fiscal Year 2009: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2008: ¥1,703,000 (Direct Cost: ¥1,310,000、Indirect Cost: ¥393,000)
• Keywords: 量子情報 / 量子リピータ / 電子スピン / 光学応答 / 量子状態転写 / 量子情報通信 / 光スピン量子制御 / 半導体量子構造 / 有限要素法

Research Abstract

The electron spin in a semiconductor is one of the promising candidates for a quantum bit to be used in a quantum information devices and its optical responses are useful for realizing quantum repeaters. We theoretically analyzed the optical reposes of the electron spin in the semiconductor quantum structures. We proposed a quantum spin tomography which can completely identify the quantum nature of the electron spin. We also proposed a new scheme for photon-spin quantum state transfer based on the time-bin photon encoding which is suitable for a long distance quantum communication.

Research Products

• [Journal Article] Measurement of Electron Spin States in a Semiconductor Quantum Well Using Tomographic Kerr Rotation" (2010)
  • Author(s): Takahiro Inagaki, Hideo Kosaka, Yoshiaki Rikitake, Hiroshi Imamura, Yasuyoshi Mitsumori, Keiichi Edamatsu
  • Journal Title: Jpn. J. Appl. Phys. 49
  • NAID: 210000068327
  • Peer Reviewed
• [Journal Article] Optical measurement of electron spin coherence in a semiconductor quantum well (2010)
  • Author(s): T. Inagaki, H. Kosaka, Y. Rikitake, H. Imamura, Y. Mitsumori, K. Edamatsu
  • Journal Title: Physica E 42 Pages: 922-925
  • Peer Reviewed
• [Journal Article] Optical measurement of electron spin coherence in a semiconductor well (2010)
  • Author(s): T.Inagaki
  • Journal Title: Physica E 42 Pages: 922-925
  • Peer Reviewed
• [Journal Article] Measurement of Electron Spin States in a Semiconductor Quantum Well Using Tomographic Kerr Rotation (2010)
  • Author(s): T.Inagaki
  • Journal Title: Japanese Journal of Applied Physics 49(Accepted)
  • Peer Reviewed
• [Journal Article] Spin coherence tomography of optically imprinted electrons in a semiconductor (2009)
  • Author(s): Hideo Kosaka, Takahiro Inagaki, Yoshiaki Rikitake, Hiroshi Imamura, Yasuyoshi Mitsumori, Keiichi Edamatsu
  • Journal Title: Nature 457 Pages: 702-702
  • Peer Reviewed
• [Journal Article] Coherent spin state transfer from light to electrons in a semiconductor (2009)
  • Author(s): H. Kosaka, H. Shigyou, Y. Mitsumori, Y. Rikitake, H. Imamura, T. Kutsuwa, K. Edamatsu
  • Journal Title: Proc. of International Conference on Quantum Communication, Measurement and Computing (QCMC2008) Pages: 245-248
  • Peer Reviewed
• [Journal Article] Coherent spin state transfer from light to electrons in a semiconductor (2009)
  • Author(s): H.Kosaka
  • Journal Title: Proc.of International Conference on Quantum Communication, Measurement and Computing(QCMC2008) Pages: 245-248
  • Peer Reviewed
• [Journal Article] Spin coherence tomography of optically imprinted electrons in a semiconductor (2009)
  • Author(s): Hideo Kosaka
  • Journal Title: Nature 457 Pages: 702-705
  • Peer Reviewed
• [Presentation] 「タイムビン光子から電子スピンへの量子状態転写についての理論的解析」(ポスター) (2010)
  • Author(s): 力武克彰、今村裕志、小坂英男
  • Organizer: 第57回応用物理学関係連合講演会
  • Place of Presentation: 湘南キャンパス
  • Year and Date: 2010-03-20
• [Presentation] タイムビン光子から電子スピンへの量子状態転写についての理論的解析(ポスター) (2010)
  • Author(s): 力武克彰
  • Organizer: 第57回応用物理学関係連合講演会
  • Place of Presentation: 東海大学湘南キャンパス
  • Year and Date: 2010-03-20
• [Presentation] スピン量子制御に向けた半導体ナノ構造光応答シミュレータの開発 (2009)
  • Author(s): 力武克彰
  • Organizer: 財団法人新世代研究所研究助成報告会
  • Place of Presentation: 明治大学紫紺館
  • Year and Date: 2009-12-04
• [Presentation] 「タイムビン量子状態転写の半導体量子構造による実現手法の考察」(ポスター) (2009)
  • Author(s): 力武克彰、今村裕志、小坂英男
  • Organizer: 日本物理学会2009年秋季大会
  • Place of Presentation: 熊本大学黒髪キャンパス
• [Presentation] “Optical spin coherence tomography of an electron in a semiconductor quantum dot"(Poster) (2009)
  • Author(s): Y. Rikitake, H. Imamura, H. Kosaka
  • Organizer: International Symposium on Nanoscale Transport and Technology 2009 (ISNTT2009)
  • Place of Presentation: Atsugi, Japan
• [Presentation] タイムビン光子量子ビットからスピン量子ビットへの量子状態転写 (2009)
  • Author(s): 力武克彰, 今村裕志, 小坂英男
  • Organizer: 日本物理学会2009年春季大会
  • Place of Presentation: 立教大学
• [Presentation] Optical Spin Coherence Tomography of an Electron in a Semiconductor Quantum Dot" (poster) (2009)
  • Author(s): Yoshiaki Rikitake
  • Organizer: International Symposium on Nanoscale Transport and Technology (ISNTT2009)
  • Place of Presentation: NTT Atsugi R&D Center, Atusgi, Kanagawa, Japan
• [Presentation] 「タイムビン光子量子ビットからスピン量子ビットへの量子状態転写」(oral) (2009)
  • Author(s): 力武克彰
  • Organizer: 日本物理学会2009年春季大会
  • Place of Presentation: 立教大学
• [Presentation] Quantum state transfer from a time-bin photon qubit to an electron spin qubit (2008)
  • Author(s): Yoshiaki Rikitake, Hiroshi Imamura, Hideo Kosaka
  • Organizer: International Symposium on Physics of Quantum Technology (ISPQT2008)
  • Place of Presentation: TU-G1, Nara, Japan
• [Presentation] Quantum state transfer from a time-bin photon qubit to an electron spin qubit" (poster) (2008)
  • Author(s): Yoshiaki Rikitake
  • Organizer: International Symposium on Physics of Quantum Technology (ISPQT2008)
  • Place of Presentation: Nara, Japan
• [Remarks] ホームページ等なし
• [Patent(Industrial Property Rights)] 量子非破壊光子検出装置及びサブポアソニアン光子数分布光生成装置 (2008)
  • Inventor(s): 小島邦裕, 今村裕志, 力武克彰
  • Industrial Property Rights Holder: 独立行政法人科学技術振興機構,独立行政法人産業技術総合研究所
  • Filing Date: 2008-11-19
  • Acquisition Date: 2008-11-19
• [Patent(Industrial Property Rights)] 量子非破壊光子検出装置及びサブポアソニアン光子数分布光生成装置 (2008)
  • Inventor(s): 小島邦裕, 力武克彰, 今村裕志
  • Industrial Property Rights Holder: 独立行政法人科学技術振興機構, 独立行政法人産業技術総合研究所
  • Industrial Property Number: 2008-296160
  • Filing Date: 2008-11-19