偏光もつれ光子対から電子スピン対への量子もつれ相関の転写技術の開発とその実証

• Project Area: nano spin conversion science
• Project/Area Number: 17H05177
• Research Category: Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
• Allocation Type: Single-year Grants
• Review Section: Science and Engineering
• Research Institution: The University of Tokyo
• Principal Investigator: 松尾 貞茂 東京大学, 大学院工学系研究科(工学部), 助教 (90743980)
• Project Period (FY): 2017-04-01 – 2019-03-31
• Project Status: Completed (Fiscal Year 2018)
• Budget Amount: ¥11,440,000 (Direct Cost: ¥8,800,000、Indirect Cost: ¥2,640,000); Fiscal Year 2018: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000); Fiscal Year 2017: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
• Keywords: 量子状態転写 / 量子もつれ相関 / 量子ドット / パラメトリック下方変換 / 非平衡フォノン / 完全計数統計 / GaAs量子ドット / もつれ光子対 / メゾスコピック物理

Outline of Annual Research Achievements

本年度は光子対から電子スピン光子偏光の対への量子もつれ相関転写実証では、狭帯域化したもつれ光子対源を用いて片方の光子を量子ドットに照射してそのスピンを単発読み出しにより検出した。また、同時に光子も検出される事象が存在することも明らかとなった。しかし、同時検出の効率が非常に悪くもつれの検証はできなかった。これはファイバーの位置が経時変化していたために光電子生成率が低くなっていたであり、今後はこの問題を改善する。
また、計画にはなかったが光ではなくフォノンの照射を行った際の二重量子ドットにおけるスピン閉塞効果の変化を調べたところスピン三重項励起状態を介したスピン反転機構によりスピン反転率がフォノン照射量に対して急激に増大することが初めて分かった。これは、非平衡フォノンとスピンとの新たな結合機構の存在を示しており、量子ビットだけでなくスピントロニクス分野でも重要だと考えられる。さらに、バイアス電圧を印加することでスピン三重項状態が二重量子ドットで共鳴状態になる状況を実現し、その共鳴現象の実時間測定にも成功した。
加えて、完全計数統計を用いてスピン反転/保存を伴うトンネル現象を調べたところ、統計性にパリティ効果や非対称性など特徴的な性質があらわれることがわかった。さらに、完全計数統計と待ち時間統計との関連性の検証も行った。これらを理論モデルで解析し、上記の特性がスピン閉塞効果に特徴的な縮退度や低いスピン反転率を反映した結果であることがわかった。これらの結果はスピンを用いた非平衡統計力学の基礎法則の検証へとつながる重要なものである。

Research Progress Status

平成30年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

平成30年度が最終年度であるため、記入しない。

Research Products

• [Int'l Joint Research] Ruhr大学(ドイツ)
• [Int'l Joint Research] Ruhr大学(ドイツ)
• [Int'l Joint Research] カリフォルニア大学/New York 大学(米国)
• [Int'l Joint Research] 北京大学(中国)
• [Journal Article] Photogeneration of a single electron from a single Zeeman-resolved light-hole exciton with preserved angular momentum (2019)
  • Author(s): Kuroyama K.、Larsson M.、Chang C. Y.、Muramoto J.、Heya K.、Fujita T.、Allison G.、Valentin S. R.、Ludwig A.、Wieck A. D.、Matsuo S.、Oiwa A.、Tarucha S.
  • Journal Title: Physical Review B Volume: 99 Issue: 8 Pages: 85203-85203
  • DOI: 10.1103/physrevb.99.085203
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Anomalous modulation of Josephson radiation in nanowire-based Josephson junctions (2018)
  • Author(s): H. Kamata, R. S. Deacon,S. Matsuo, K. Li, S. Jeppesen, L. Samuelson, H. Q. Xu, K. Ishibashi, and S. Tarucha,
  • Journal Title: Phys. Rev. B Volume: 98 Issue: 4 Pages: 41302-41302
  • DOI: 10.1103/physrevb.98.041302
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Equal-Spin Andreev Reflection in Junctions between Spin-resolved Quantum Hall Bulk State and Superconductor (2018)
  • Author(s): Sadashige Matsuo, Kento Ueda, Shoji Baba, Hiroshi Kamata, Mizuki Tateno, Javad Shabani, Christopher Palmstrom, Seigo Tarucha,
  • Journal Title: Scientific Reports Volume: 8 Pages: 3454-3454
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Cooper pair splitting in two parallel InAs nanowires (2018)
  • Author(s): Shoji Baba, Christian Junger, Sadashige Matsuo, Andreas Baumgartner, Yosuke Sato, Hiroshi Kamata, Kan Li, Soren Jeppesen, Lars Samuelson, Hongqi Xu, Christian Schonenberger, Seigo Tarucha,
  • Journal Title: arXiv Volume: 1802 Pages: 08059-08059
  • Open Access
• [Journal Article] A single eletron-photon pair generation from a single polarization-entangled photon pair (2017)
  • Author(s): Kazuyuki Kuroyama, Marcus Larsson, Sadashige Matsuo, Takafumi Fujita, Sascha R. Valentin, Arne Ludwig, Andreas D. Wieck, Akira Oiwa, Seigo Tarucha,
  • Journal Title: Scientific Reports Volume: 7 Pages: 16968-16968
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Gate tunable parallel double quantum dot in InAs double-nanowire junctions (2017)
  • Author(s): Shoji Baba, Sadashige Matsuo, Hiroshi Kamata, Russell S. Deacon, Akira Oiwa Kan Li, S. Jeppesen, L. Samuelson, Hongqi Xu, Seigo Tarucha,
  • Journal Title: Applied Physics Letters Volume: 111 Pages: 233513-233513
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Magnetic Field Inducing Zeeman Splitting and Anomalous Conductance Reduction of Half-integer Quantized Plateaus in InAs Quantum Wires (2017)
  • Author(s): Sadashige Matsuo, Hiroshi Kamata, Shoji Baba, Russell Deacon, Javad Shabani, Christopher Palmstrom, Seigo Tarucha,
  • Journal Title: Phys. Rev. B (R) Volume: 96 Pages: 201404-201404
  • Peer Reviewed / Int'l Joint Research
• [Presentation] Polarization-to-spin conversion and entanglement absorption via a double quantum dot device (2019)
  • Author(s): Chien-Yuan Chang, , K. Kuroyama, S. Matsuo, S. R. Valentin, A. Ludwig, A. D. Wieck, A. Oiwa, and Seigo Tarucha
  • Organizer: 平成30年度スピン変換年次報告会
• [Presentation] Polarization-to-spin conversion and entanglement distribution via coherent interface with semiconductor double quantum dot (2019)
  • Author(s): Chien-Yuan Chang, Kazuyuki kuroyama, Marcus Larsson, Sadashige Matsuo, Takafumi Fujita, Sascha R Valentin, Arne Ludwig, Andreas D. Wieck, Akira Oiwa,Seigo Tarucha
  • Organizer: APS March Meeting 2019
  • Int'l Joint Research
• [Presentation] Induced superconductivity in double InAs nanowires (2019)
  • Author(s): 松尾貞茂
  • Organizer: 日本物理学会2019年春季大会
  • Invited
• [Presentation] GaAs横型二重量子ドットにおけるフォノン励起のスピン三重項を介した単一電子のトンネル現象の実時間観測 (2019)
  • Author(s): 黒山和幸, 松尾貞茂, 村本丈, Sascha R. Valentin, Arne Ludwig, Andreas D. Wieck, 都倉康弘, 樽茶清悟,
  • Organizer: 日本物理学会2019年春季大会
• [Presentation] Two electron spin dynamics in a double quantum dot driven by a phonon source (2018)
  • Author(s): K. Kuroyama, S. Matsuo, J. Muramoto, S. R. Valentin, A. Ludwig, A. D. Wieck, Y. Tokura and S. Tarucha
  • Organizer: One-Day Symposium on Spintronic Properties of Graphene and Related 2D Materials
• [Presentation] Towards entanglement transfer from a single photon pair to a single electron-photon pair using spin-resolved light hole excitation (2018)
  • Author(s): K. Kuroyama, C. Y. Chang, J. Muramoto, S. R. Valentin, A. Ludwig, A. D. Wieck, , S. Matsuo, A. Oiwa and S. Tarucha
  • Organizer: International Conference on Integrated Quantum Photonics2018
  • Int'l Joint Research
• [Presentation] 超伝導接合における非局所効果とマヨラナ粒子の探索 (2018)
  • Author(s): 松尾貞茂
  • Organizer: 第8回QUATUO研究会
  • Invited
• [Presentation] GaAs横型量子ドットにおけるスピン分離した軽い正孔の共鳴光学励起による単一光子偏光から電子スピンへの量子状態転写の実証 (2018)
  • Author(s): 黒山和幸, 村本丈, 部谷謙太郎, Marcus Larsson, 藤田高史, Sascha R. Valentin，Arne Ludwig，Andreas D. Wieck, 松尾貞茂，大岩顕，樽茶清悟
  • Organizer: 日本物理学会2018年秋季大会
• [Presentation] GaAs 横型量子ドットにおけるスピン－格子相互作用を介したフォノンによる電子スピン反転の実時間測定 (2018)
  • Author(s): 黒山和幸, 松尾貞茂, 村本丈, Sascha R. Valentin，Arne Ludwig，Andreas D. Wieck，都倉康弘，樽茶清悟
  • Organizer: 日本物理学会2018年秋季大会
• [Presentation] Full Counting Statistics of Pauli Spin Blockade in a GaAs double quantum dot (2018)
  • Author(s): S.Matsuo, K.Kuroyama, S.Yabunaka, S.R.Valentin, A. Ludwig, A. Wieck, S.Tarucha
  • Organizer: 8th Summer School on Semiconductor/Superconducting Quantum Coherence Effect and Quantum Information
• [Presentation] Toward entanglement transfer between photon pairs to electron-photon pairs with Zeeman-resolved light hole. (2018)
  • Author(s): C. -Y. Chang, K. Kuroyama, S. Matsuo, S. R. Valentin, A. Ludwig, A. D. Wieck, A. Oiwa, and S. Tarucha
  • Organizer: 8th Summer School on Semiconductor/Superconducting Quantum Coherence Effect and Quantum Information
• [Presentation] Phonon-induced enhancement of spin flip process in a GaAs double quantum dot (2018)
  • Author(s): K. Kuroyama, S. Matsuo, J. Muramoto, S. R. Valentin, A. Ludwig, A. D. Wieck, Y. Tokura, S. Tarucha
  • Organizer: 8th Summer School on Semiconductor/Superconducting Quantum Coherence Effect and Quantum Information
• [Presentation] Quantum state conversion from a single photon polarization to a single electron spin using spinresolved light hole excitation (2018)
  • Author(s): K. Kuroyama , S. Matsuo, M. Larsson , K. Heya , J. Muramoto , T. Fujita , S.R. Valentin , A. Ludwig , A.D. Wieck , A. Oiwa , S. Tarucha
  • Organizer: 34th International Conference on the Physics of Semiconductors
  • Int'l Joint Research
• [Presentation] Observation of Cooper pair splitting in a ballistic Josephson junction through double InAs nanowires (2018)
  • Author(s): Kento Ueda, Sadashige Matsuo, Hiroshi Kamata, Yosuke Sato, Yusuke Takeshige, Kan Li, Soren Jeppesen, Lars Samuelson, Hong-qi Xu, Seigo Tarucha
  • Organizer: 34th International Conference on the Physics of Semiconductors (ICPS2018)
  • Int'l Joint Research / Invited
• [Presentation] Tomonaga-Luttinger liquid behaviour in 1D electron system fabricated from InAs Quantum well holding strong spin-orbit interaction (2018)
  • Author(s): Yosuke Sato, Sadashige Matsuo, Chen-Hsuan Hsu, Peter Stano, Daniel Loss, Kento, Ueda, Yuusuke Takeshige, Hiroshi Kamata, Joon Sue Lee, Borzoyeh Shojaei, Javad Shabani, Christopher Palmstrom, Yasuhiro Tokura, Seigo Tarucha
  • Organizer: 34th International Conference on the Physics of Semiconductors (ICPS2018)
  • Int'l Joint Research
• [Presentation] Evaluation of Josephson Vortex Core Size Induced in Corbino-geometry Josephson Junctions (2018)
  • Author(s): Matsuo Sadashige , Tateno Mizuki , Sato Yosuke, Ueda Kento, Takeshige, Yusuke, Kamata Hiroshi, Lee Joon Sue, Shojaei Borzoyeh, Palmstr?m Christopher J. , Tarucha Seigo,
  • Organizer: 20th International Conference on Superlattices, Nanostructures and Nanodevices (ICSNN)
  • Int'l Joint Research
• [Presentation] Photon-spin quantum interface using gate-defined quantum dots (2018)
  • Author(s): Akira Oiwa, Takafumi Fujita, Kazuyuki Kuroyama, Sadashige Matsuo, Rio Fukai, Haruki KIyama, Arne, Ludwig, Andreas Wieck, and Seigo Tarucha
  • Organizer: 2018 Workshop on Innovative Nanoscale Devices and Systems (WINDS 2018)
  • Int'l Joint Research / Invited
• [Presentation] Josephson emission of InAs nanowire Josephson junctions (2018)
  • Author(s): H. Kamata, R. S. Deacon, S. Matsuo, K. Li, H. Q. Xu, K. Ishibashi, S. Tarucha
  • Organizer: The 2nd international symposium on Dynamics in Artificial Quantum Systems (DAQS2018)
  • Int'l Joint Research
• [Presentation] 超伝導体Al-並列二重InAsナノ細線-超伝導体Alデバイスでの電子輸送のゲート操作 (2018)
  • Author(s): 上田健人, 松尾貞茂, 鎌田大, 佐藤洋介, 武重有祐, K. Li, S. Jeppesen, L. Samuelson, H. Q. Xu, 樽茶清悟
  • Organizer: 日本物理学会第73回年次大会
• [Presentation] InAs量子井戸に形成された1次元電子系の朝永－ラッティンジャー液体的性質 (2018)
  • Author(s): 佐藤洋介, 松尾貞茂, 上田健人, 武重有祐, 鎌田大, J. S. LeeC.B. Shojaei, C. Palmstrom, 都倉康弘, 樽茶清悟
  • Organizer: 日本物理学会第73回年次大会
• [Presentation] Single-shot measurement of quantum state transfer from photon polarization to electron spin (2018)
  • Author(s): S. Matsuo, K. Kuroyama, J. Muramoto, K. Heya, S. R. Valentin, A. Ludwig, A. Wieck, A. Oiwa, S.Tarucha
  • Organizer: 平成29年度スピン変換年次報告会
• [Presentation] Towards electrical field tuning of topological crystalline insulator:SnTe (2018)
  • Author(s): Y. Takeshige, K. Ueda, Y. Sato, M. Kamata, R. Nakanishi, K. Miyauchi, R. Akiyama, S. Hasegawa, S. Matsuo, S. Tarucha
  • Organizer: 8th Summer School on Semiconductor/Superconducting Quantum Coherence Effect and Quantum Information
• [Presentation] 半導体ナノ細線 /超伝導体ハイブリッド構造でのマヨラナ粒子の探索 (2018)
  • Author(s): 松尾貞茂
  • Organizer: 第65回応用物理学会秋季学術講演会
  • Invited
• [Presentation] Experimental Observation of Andreev Reflection on Junctions of Spin-resolved Quantum Hall Bulk State and Superconductor (2017)
  • Author(s): Sadashige Matsuo, Kento Ueda, Shoji Baba, Hiroshi Kamata, Javad Shabani, Christopher Palmstrom, and Seigo Tarucha
  • Organizer: TOP-SPIN3 Spin and Topological Phenomena in Nanostrucutres-Towards Topological Materials Science
  • Int'l Joint Research / Invited
• [Presentation] Observation of Cooper pair splitting from superconductor to parallel coupled two InAs nanowires (2017)
  • Author(s): Sadashige Matsuo, S. Baba, C. Juenger, Y. Sato, K. Li, H.Q. Xu, C. Schonenberger, A. Oiwa, S. Tarucha
  • Organizer: 2nd Japan-China International Workshop on Quantum Technologies, Ito International Research Center, the University of Tokyo
  • Int'l Joint Research / Invited
• [Presentation] Experimental study of exotic transport in superconductor-semiconductor hybrid systems (2017)
  • Author(s): Sadashige Matsuo, Shoji Baba, Yosuke Sato, Kento Ueda, Hiroshi Kamata, Seigo Tarucha
  • Organizer: The second international conference on Quantum Information、Quantum Topological Orders and Emergent Spacetime on Quantum Simulators
  • Int'l Joint Research / Invited
• [Presentation] Andreev reflection in junctions of spin-resolved InAs quantum Hall bulk state and superconductor NbTi (2017)
  • Author(s): Sadashige Matsuo, Kento Ueda, Shoji Baba, Hiroshi Kamata, Javad Shabani, Christopher Palmstrom, and Seigo Tarucha
  • Organizer: 28th International Conference on Low Temperature Physics (LT28)
  • Int'l Joint Research
• [Presentation] Observation of quantum state transfer from polarized photons to electron spins using optical Pauli blockade effect (2017)
  • Author(s): K. Kuroyama, M. Larsson, S. Matsuo, T. Fujita, S. R. Valentin, A. Ludwig, A. Wieck, A. Oiwa, S.Tarucha
  • Organizer: 28th International Conference on Low Temperature Physics (LT28)
  • Int'l Joint Research
• [Presentation] Cooper pair splitter realized in superconductor-InAs double nanowire junctions (2017)
  • Author(s): Y. Sato, S. Baba, C. Juenger, S. Matsuo, H. Kamata, K. Li, H.Q. Xu, C. Schoenenberger, S. Tarucha
  • Organizer: International Conference on Topological Materials Science 2017 (TopoMat2017)
  • Int'l Joint Research
• [Presentation] Josephson radiation of InAs nanowire Josephson junctions (2017)
  • Author(s): H. Kamata, R. S. Deacon, S. Matsuo, S. Baba , K. Li, H. Q. Xu, K. Ishibashi, S. Tarucha
  • Organizer: 22nd International Conference on Electronic Properties of Two Dimensional Systems (EP2DS-22)/18th International Conference on Modulated Semiconductor Structures (MSS-18)
  • Int'l Joint Research
• [Presentation] Observation of Crossed Andreev Reflection on superconductor-InAs double nanowire junction device (2017)
  • Author(s): Y. Sato, S. Baba, C. Juenger, S. Matsuo, H. Kamata, K. Li, H.Q. Xu, C. Schoenenberger, S. Tarucha
  • Organizer: 22nd International Conference on Electronic Properties of Two Dimensional Systems (EP2DS-22)/18th International Conference on Modulated Semiconductor Structures (MSS-18)
  • Int'l Joint Research
• [Presentation] 偏光もつれ光子対から電子スピン対への量子もつれ相関の転写技術の開発とその実証 (2017)
  • Author(s): 松尾貞茂
  • Organizer: 第2期公募研究採択課題 研究計画発表会
• [Presentation] 並列二重InAsナノ細線と超伝導体アルミニウムの接合デバイスにおける電子輸送制御 (2017)
  • Author(s): 上田健人、松尾貞茂、鎌田 大、佐藤洋介、武重有祐、K. Li、S. Jeppesen、K. Deppert、 L. Samuelson、H. Q. Xu、樽茶清悟
  • Organizer: 第22回スピン工学の基礎と応用 PASPS-22
• [Presentation] InAs量子井戸にエッチング形成された1次元系の朝永―ラッティンジャー液体的性質 (2017)
  • Author(s): 佐藤洋介、松尾貞茂、上田健人、武重有祐、鎌田 大、J. S. Lee、B. Shojaei、 C. Palmstrom、都倉康弘、樽茶清悟
  • Organizer: 第22回スピン工学の基礎と応用 PASPS-22
• [Presentation] 偏光もつれ光子対による単一光子-電子対の生成 (2017)
  • Author(s): 黒山和幸、Marcus Larsson、松尾貞茂1、藤田高史、Sacha R. Valentin, Arne Ludwig, Andreas D. Wieck, 大岩 顕、樽茶清悟
  • Organizer: 第22回スピン工学の基礎と応用 PASPS-22
• [Presentation] InAs量子井戸/NbTi接合でのスピン分離した量子ホールバルク状態におけるア ンドレーエフ反射の観測 (2017)
  • Author(s): 松尾貞茂、上田健人、馬場翔二、鎌田 大、館野瑞樹、Javad Shabani、Chris J. Palmstrom、樽茶清悟
  • Organizer: 第22回スピン工学の基礎と応用 PASPS-22
• [Presentation] Al-InAs量子井戸から作製した超伝導接合の輸送特性.2 (2017)
  • Author(s): 松尾貞茂、館野瑞樹、馬場翔二、上田健人、佐藤洋介、鎌田大、Joon Sue Lee、Borzoyeh Shojaei、Christopher Palmstrom、樽茶清悟
  • Organizer: 日本物理学会2017年秋季大会
• [Presentation] 並列二重InAsナノ細線と超伝導体の接合におけるクーパー対分離の観測 (2017)
  • Author(s): Y. Sato, S. Baba, C. Juenger, Sadashige Matsuo, A. Baumgatner,Hiroshi Kamata , K. Li, H.Q. Xu, C. Schonenberger, A. Oiwa, S. Tarucha
  • Organizer: 日本物理学会2017年秋季大会
• [Presentation] GaAs横型量子ドットにおける光学的スピン閉塞効果を用いた量子状態転写の実証.2 (2017)
  • Author(s): K. Kuroyama, Marcus Larsson, K.Yabe, Sadashige Matsuo, T.Fujita, Sascha R. Valentin, Arne Ludwig, Andreas D. Wieck, A. Oiwa, S. Tarucha
  • Organizer: 日本物理学会2017年秋季大会
• [Presentation] Exclusive Excitation on Spin-Resolved Light Hole in a Gate Defined GaAs Quantum Dot (2017)
  • Author(s): S. Matsuo, K. Kuroyama, M. Larsson, K. Heya, T. Fujita, S. R. Valentin, A. Ludwig, A. Wieck, A. Oiwa, S. Tarucha
  • Organizer: 平成29年度スピン変換研究会
• [Presentation] Cooper pair splitting on a junction of an Al superconductor and InAs double-nanowire (2017)
  • Author(s): Y. Sato, S. Baba, C. Juenger, S. Matsuo, A. Baumgatner, H. Kamata, K. Li , H.Q. Xu, C. Schonenberger, S. Tarucha
  • Organizer: 7th Summer School on Semiconductor/Superconducting Quantum Coherence Effect and Quantum Information
• [Presentation] Generation of a single electron-photon pair from a single polarization-entangled photon pair (2017)
  • Author(s): S. Matsuo, K. Kuroyama, M. Larsson, T. Fujita, S. R. Valentin, A. Ludwig, A. D. Wieck, A. Oiwa, S. Tarucha
  • Organizer: 7th Summer School on Semiconductor/Superconducting Quantum Coherence Effect and Quantum Information
• [Remarks] http://www.meso.t.u-tokyo.ac.jp/