Exploring the novel quantum electronic physics in solid state using spatial control of paired quantum states

2018 Fiscal Year Annual Research Report

• Project/Area Number: 26220710
• Research Institution: The University of Tokyo
• Principal Investigator: 樽茶 清悟 東京大学, 大学院工学系研究科(工学部), 教授 (40302799)
• Co-Investigator(Kenkyū-buntansha): 山本 倫久 東京大学, 大学院工学系研究科(工学部), 特任准教授 (00376493) ; 大岩 顕 大阪大学, 産業科学研究所, 教授 (10321902) ; 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): 2014-05-30 – 2019-03-31
• Keywords: 量子もつれ / 量子非破壊測定 / 表面弾性波 / グラフェン / 二重ナノ細線-超伝導体接合 / マヨラナ粒子 / 相関測定 / 量子状態変換

Outline of Annual Research Achievements

（１）昨年度実現した量子非破壊測定と制御NOTの性能を評価し、前者では89％の高忠実度（材料がSiの場合99.9％以上に相当）、後者では操作時間が短く（5.5ns）、高忠実度が得られることを確認した。また同じく実現した非隣接ドット間の量子もつれ生成の機構を解明した。他に量子テレポーテーションの原理確認、４重ドットでのスピン相関の制御法の提案と技術開発を終えた。Si量子ドットにおいて高忠実度のもつれ形成に成功した。
（２）表面弾性波で動く量子ドット中の電子対の実験は、冷凍機移設などによって電流雑音測定系の開発継続が困難となったため、動く量子ドット中の電子のコヒーレンスを確認する干渉実験を進めた。同実験から、軌道を含めた電子のコヒーレンスが長距離保存されることを見した。グラフェン－超伝導接合に関しては、ジョセフソン接合における磁場周期異常の要因解明が現状では困難と判断し、中断した。
（３）二重ナノ細線と超伝導体接合ではゲート掃引の安定性を改善し、また、近接領域のゲート制御に成功した。超伝導体とBiSbTeとのジョセフソン接合の測定を行い、超伝導電流のゲート操作に成功した。また、電流位相関係と関連したシャピロステップの測定を行ったが、基板の大きな誘電率のためにマヨラナ粒子の兆候は得られなかった。
（４）相関測定の精度確保のため、光学系を改良し、光電子生成率を一桁程度改善した。また、二つの光電子のスピン検出の準備として、二重ドットの２スピン状態の動特性を完全計数統計の手法で調べ、スピン反転に起因する統計的特徴を明らかにした。この際、フォノンによる新しいスピン反転機構を見出した。(110)GaAs 3重量子ドットと電荷検出を実現し、重い正孔励起による高効率量子状態変換の実証に向けて準備を終えた。高効率変換が期待できる試料としてInAsドットの研究を開始し、電荷検出技術を開発した。

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。

Remarks

(1)日経産業新聞朝刊６面「量子もつれ、離れた時でも」2018年6月15日　(2)電子デバイス産業新聞3面「量子ドット通信技術伝送向上へ新手法」2018年9月20日　(3)日刊工業新聞25ページ「微細な半導体量子ドット　阪大、電子１個の出入り検出」9月20日　(4)フジサンケイビジネスアイ12面「半導体量子ビットによるハイブリッド量子計算手法の実証」2019年1月17日

Research Products

• [Int'l Joint Research] ルール大学 ボーフム(ドイツ)
  • Country Name: GERMANY
  • Counterpart Institution: ルール大学 ボーフム
• [Int'l Joint Research] 韓国科学技術院KAIST(韓国)
  • Country Name: KOREA (REP. OF KOREA)
  • Counterpart Institution: 韓国科学技術院KAIST
• [Int'l Joint Research] 香港城市大学/北京大学(中国)
  • Country Name: CHINA
  • Counterpart Institution: 香港城市大学/北京大学
• [Int'l Joint Research] バーゼル大学(スイス)
  • Country Name: SWITZERLAND
  • Counterpart Institution: バーゼル大学
• [Int'l Joint Research] デューク大学/サニーバッファロー大学(米国)
  • Country Name: U.S.A.
  • Counterpart Institution: デューク大学/サニーバッファロー大学
• [Int'l Joint Research]
  • # of Other Countries: 1
• [Journal Article] Photogeneration of a single electron from a single Zeeman-resolved light-hole exciton with preserved angular momentum (2019)
  • Author(s): K. Kuroyama, M. Larsson, C. Y. Chang, J. Muramoto, K. Heya, T. Fujita, G. Allison, S. R. Valentin, A. Ludwig, A. D. Wieck, S. Matsuo, A. Oiwa, and S. Tarucha
  • Journal Title: PHYSICAL REVIEW B Volume: 99 Pages: 85203
  • DOI: 10.1103/PhysRevB.99.085203
• [Journal Article] Difference in charge and spin dynamics in a quantum dot-lead coupled system (2019)
  • Author(s): Otsuka, T; Nakajima, T; Delbecq, MR; Stano, P; Amaha, S; Yoneda, J; Takeda, K; Allison, G; Li, S; Noiri, A; Ito, T; Loss, D; Ludwig, A; Wieck, AD; Tarucha, S
  • Journal Title: PHYSICAL REVIEW B Volume: 99 Pages: 85402
  • DOI: 10.1103/PhysRevB.99.085402
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] A fast quantum interface between different spin qubit encodings (2018)
  • Author(s): Noiri, A ; Nakajima, T ; Yoneda, J ; Delbecq, MR ; Stano, P ; Otsuka, T ; Takeda, K ; Amaha, S ; Allison, G ; Kawasaki, K ; Kojima, Y ; Ludwig, A ; Wieck, AD ; Loss, D ; Tarucha, S
  • Journal Title: NATURE COMMUNICATIONS Volume: 9 Pages: 5066
  • DOI: 10.1038/s41467-018-07522-1
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Optimized electrical control of a Si/SiGe spin qubit in the presence of an induced frequency shift (2018)
  • Author(s): Takeda, K ; Yoneda, J ; Otsuka, T; Nakajima, T ; Delbecq, MR ; Allison, G ; Hoshi, Y ; Usami, N ; Itoh, KM ; Oda, S ; Kodera, T ; Tarucha, S
  • Journal Title: NPJ QUANTUM INFORMATION Volume: 4 Pages: 54
  • DOI: 10.1038/s41534-018-0105-z
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Anomalous modulation of Josephson radiation in nanowire-based Josephson junctions (2018)
  • Author(s): Kamata, H ; Deacon, RS ; Matsuo, S ; Li, K ; Jeppesen, S ; Samuelson, L ; Xu, HQ ; Ishibashi, K ; Tarucha, S
  • Journal Title: PHYSICAL REVIEW B Volume: 98 Pages: 41302
  • DOI: 10.1103/PhysRevB.98.041302
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Cooper-pair splitting in two parallel InAs nanowires (2018)
  • Author(s): Baba, S ; Junger, C ; Matsuo, S ; Baumgartner, A ; Sato, Y ; Kamata, H ; Li, K ; Jeppesen, S ; Samuelson, L ; Xu, HQ ; Schonenberger, ; Tarucha, S
  • Journal Title: NEW JOURNAL OF PHYSICS Volume: 20 Pages: 63021
  • DOI: 10.1088/1367-2630/aac74e
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Investigation of Supercurrent in the Quantum Hall Regime in Graphene Josephson Junctions (2018)
  • Author(s): Anne W. Draelos, Ming Tso Wei, Andrew Seredinski, Chung Ting Ke, Yash Mehta, Russell Chamberlain, Kenji Watanabe, Takashi Taniguchi, Michihisa Yamamoto, Seigo Tarucha, Ivan V. Borzenets, Francois Amet, Gleb Finkelstein
  • Journal Title: JOURNAL OF LOW TEMPERATURE PHYSICS Volume: 191 Pages: 288-300
  • DOI: 10.1007/s10909-018-1872-9
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Coherent transfer of electron spin correlations assisted by dephasing noise (2018)
  • Author(s): Takashi Nakajima , Matthieu R. Delbecq, Tomohiro Otsuka , Shinichi Amaha, Jun Yoneda , Akito Noiri , Kenta Takeda , Giles Allison, Arne Ludwig , Andreas D. Wieck , Xuedong Hu, Franco Nori & Seigo Tarucha
  • Journal Title: NATURE COMMUNICATIONS Volume: 9 Pages: 2133_1-8
  • DOI: 10.1038/s41467-018-04544-7
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Supercurrent in Graphene Josephson Junctions with Narrow Trenches in the Quantum Hall Regime (2018)
  • Author(s): Seredinski, A ; Draelos, A ; Wei, MT ; Ke, CT ; Fleming, T ; Mehta, Y ; Mancil, E ; Li, HM ; Taniguchi, T ; Watanabe, K ; Tarucha, S ; Yamamoto, M ; Borzenets, IV ; Amet, F ; Finkelstein, G
  • Journal Title: MRS ADVANCES Volume: 3 Pages: 2855-2864
  • DOI: 10.1557/adv.2018.469
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Single-electron charge sensing in self-assembled quantum dots (2018)
  • Author(s): Haruki Kiyama, Alexander Korsch, Naomi Nagai, Yasushi Kanai, Kazuhiko Matsumoto, Kazuhiko Hirakawa, and Akira Oiwa
  • Journal Title: Scientific Reports Volume: 8 Pages: 13188_1-6
  • DOI: 10.1038/s41598-018-31268-x
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] ポアンカレインターフェース －単一光子偏光から単一電子スピンへの量子インターフェース－ (2018)
  • Author(s): 大岩顕, 藤田高史, 木山治樹, 黒山和幸, 松尾貞茂, 樽茶清悟
  • Journal Title: 光学 Volume: 47 Pages: 148-154
  • Peer Reviewed
• [Journal Article] 固体の電子波の非電荷自由度 (2018)
  • Author(s): 山本倫久
  • Journal Title: 応用物理 Volume: 88 Pages: 96-100
• [Journal Article] Four single-spin Rabi oscillations in a quadruple quantum dot (2018)
  • Author(s): Ito, T; Otsuka, T; Nakajima, T; Delbecq, MR; Amaha, S; Yoneda, J; Takeda, K; Noiri, A; Allison, G; Ludwig, A; Wieck, AD; Tarucha, S
  • Journal Title: APPLIED PHYSICS LETTERS Volume: 113 Pages: 93101
  • DOI: 10.1063/1.5040280
  • Peer Reviewed / Int'l Joint Research
• [Presentation] Si platform for spin-based quantum computing (2019)
  • Author(s): Seigo Tarucha
  • Organizer: International School of Spintronics and Korea-Japan Spintronics Workshop
  • Int'l Joint Research / Invited
• [Presentation] Experimental verification entanglement-preserving transformation between SPDC photons and electron spin in a gate-defined lateral quantum dot (2019)
  • Author(s): CHANG,Chien-Yuan
  • Organizer: Invitation for Taiwan Quantum Computer Workshop
  • Int'l Joint Research / Invited
• [Presentation] Versatile Spin Control for Spin-based Quantum Computing with Quantum Dots (2019)
  • Author(s): Seigo Tarucha
  • Organizer: Taiwan International Quantum Computer Workshop in Taipei
  • Int'l Joint Research / Invited
• [Presentation] Versatile Spin Control for Spin-based Quantum Computing with Quantum Dots (2019)
  • Author(s): Seigo Tarucha
  • Organizer: Taiwan International Quantum Computer Workshop in Hsinchu
  • Int'l Joint Research / Invited
• [Presentation] Si platform for fault tolerant spin-based quantum computing with quantum dots (2019)
  • Author(s): Seigo Tarucha
  • Organizer: RIKEN-Berkley Workshop on Quantum Information Science
  • Int'l Joint Research / Invited
• [Presentation] ナノ構造の量子状態制御と量子情報への応用 (2019)
  • Author(s): Seigo Tarucha
  • Organizer: 第10回低温センター研究交流会
  • Invited
• [Presentation] Fast CPHASE and QND using Three Spins in a Triple Quantum Dot (2019)
  • Author(s): Seigo Tarucha
  • Organizer: UTokyo-ANU workshop on Quantum Control and Electronic Materials and Devices
  • Int'l Joint Research / Invited
• [Presentation] Towards quantum teleportation with quantum-dot spin qubits (2019)
  • Author(s): Y. Kojima, T. Nakajima, A. Noiri, J. Yoneda, T. Otsuka1, K. Takeda, S. Li, Stephen D. Bartlett, A. Ludwig, A. D. Wieck and S. Tarucha
  • Organizer: UTokyo-ANU workshop on Quantum Control and Electronic Materials and Devices
  • Int'l Joint Research
• [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] 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] 微小磁石ESRに用いる局所磁場パラメータの解析 (2019)
  • Author(s): 伊藤匠, 大塚朋廣, 中島峻, Matthieu Delbecq, 天羽真一, 米田淳, 武田健太, 野入亮人, Giles Allison, Arne Ludwig, Andreas Wieck, 樽茶清悟
  • Organizer: 日本物理学会2019年春季大会
• [Presentation] トポロジカル絶縁体(Bi1-xSbx)2Te3のジョセフソン接合における交流ジョセフソン効果 (2019)
  • Author(s): 武重有祐, 松尾貞茂, Russell S. Deacon, 上田健人, 佐藤洋介, Yi-Fan Zhao, Ling Zhang, Cui-Zu Chang, 石橋幸治, 樽茶清悟
  • Organizer: 日本物理学会2019年春季大会
• [Presentation] 電子スピンの量子テレポーテーションに向けた実験 (2019)
  • Author(s): 小嶋洋平, 中島峻, 野入亮人, 米田淳, 大塚朋廣, 武田健太, S. Li, 伊藤匠, S.D. Bartlett, A. Ludwig, A.D. Wieck, 樽茶清悟
  • Organizer: 日本物理学会2019年春季大会
• [Presentation] Induced superconductivity in double InAs nanowires (2019)
  • Author(s): S.Matsuo
  • Organizer: 日本物理学会2019年春季大会
  • Invited
• [Presentation] Introduction (2019)
  • Author(s): Seigo Tarucha
  • Organizer: 日本物理学会2019年春季大会
  • Invited
• [Presentation] Coherent control and dephasing of electron spins in quantum dots (2019)
  • Author(s): Seigo Tarucha
  • Organizer: Electroweak interaction and Unified Theories Mesoscopic Physics
  • Invited
• [Presentation] (110)-GaAs/AlGaAs量子井戸構造における逆スピンホール効果を用いた光励起スピン検出 (2019)
  • Author(s): 茶谷知樹, 中川智裕, J. Ritzmann, A. Ludwig, A. Wieck, 酒井裕司, 大岩顕
  • Organizer: 日本物理学会2019年春季大会
• [Presentation] アンドープGaAs/AlGaAs量子井戸における2次元電子系に対する光照射の影響 (2019)
  • Author(s): 林亮太, 藤田高史, 井手西広樹, 好田誠, 新田淳作, J.Ritzmann, A.Ludwig, A.D.Wieck, 大岩顕
  • Organizer: 日本物理学会2019年春季大会
• [Presentation] SiGe自己形成量子ドットの電気伝導に対するサイドゲート効果 (2019)
  • Author(s): 田中萌, 川口紀俊, 木山治樹, Mario Bamesreiter, Dominique Bougeard, 大岩顕
  • Organizer: 日本物理学会2019年春季大会
• [Presentation] 変調ドープオーミック接触を用いた電界誘起二次元電子系の作製と光安定性の評価 (2019)
  • Author(s): 福田源希, 林亮太, 藤田高史, 金井康, 松本和彦, J.Ritzmann, A.Ludwig, A.D.Wieck, 大岩顕
  • Organizer: 日本物理学会2019年春季大会
• [Presentation] ゲート制御量子ドットを含む2次元スラブ型フォトニック結晶の光学・電気的特性の研究 (2019)
  • Author(s): 酒井裕司, 田尻武義, 車一宏, 木山治樹, 大岩顕, 中島峻, 樽茶清悟, 岩本敏, 荒川泰彦
  • Organizer: 日本物理学会2019年春季大会
• [Presentation] 量子格子模型ソルバーHΦを用いた量子ドット系のスピン緩和率解析ツールの開発 (2019)
  • Author(s): 吉見一慶, 加藤岳生, 木山治樹, 大岩顕
  • Organizer: 日本物理学会2019年春季大会
• [Presentation] Manipulation of electron waves and solid-state flying qubits (2019)
  • Author(s): Michihisa Yamamoto
  • Organizer: RIKEN-Berkeley Workshop on Quantum Information Science
  • Int'l Joint Research / Invited
• [Presentation] Kondo Cloud Detected by Electronic Interferometers (2019)
  • Author(s): M. Yamamoto, I.V. Borzenets, J.C.H. Chen, J. Shim, H.-S. Sim, A. Ludwig, A.D. Wieck, S. Tarucha
  • Organizer: International Workshop on Hybrid Quantum Systems
  • Int'l Joint Research
• [Presentation] Measurement of the Kondo cloud length via a quantum dot coupled to a 1d interferometer: Theory (1/2) (2019)
  • Author(s): I.V. Borzenets, J. Shim, J.C.H. Chen, H.-S. Sim, M. Yamamoto, S. Tarucha
  • Organizer: APS March meeting 2019
  • Int'l Joint Research
• [Presentation] ２層グラフェンにおけるスピンバレー流 (2019)
  • Author(s): 山本倫久
  • Organizer: 日本物理学会2019年春季大会
  • Int'l Joint Research / Invited
• [Presentation] High-fidelity and scale-up of quantum gates in Sibased quantum computing (2018)
  • Author(s): S. Tarucha
  • Organizer: QUANTUM TEHNOLOGY CREATING THE FUTURE
  • Invited
• [Presentation] Quantum Coherence of Spin Qubits with Limited Coupling to the Environment (2018)
  • Author(s): Seigo Tarucha
  • Organizer: International Symposium on Quantum Computing and Quantum Optics
  • Int'l Joint Research / Invited
• [Presentation] Quantum technology for implementing spin based quantum computing with high fidelity and up scaling of qubits (2018)
  • Author(s): Seigo Tarucha
  • Organizer: the 19th International Symposium on the Physics of Semiconductors and Applications (ISPSA）
  • Int'l Joint Research / Invited
• [Presentation] Proximity-induced Superconductivity Realized in Double InAs Nanowires via Cooper Pair Splitting (2018)
  • Author(s): Seigo Tarucha
  • Organizer: Quantum Designer Physics 2018
  • Int'l Joint Research / Invited
• [Presentation] Control with Triple Quantum Dots: Hybrid Spin Qubit, QND, and Coherent Entanglement Transfer (2018)
  • Author(s): Seigo Tarucha
  • Organizer: The ICSNN (International Conference on Superlattices, Nanostructures and Nanodevices)
  • Int'l Joint Research / Invited
• [Presentation] Spin-valley Hall effect in zero Landau level of bilayer graphene (2018)
  • Author(s): Tanaka Miuko, Shimazaki Yuya, Borzenets Ivan, Taniguchi Takashi, Watanabe Kenji, Yamamoto Michihisa, Tarucha Seigo
  • Organizer: ICPS2018
  • Int'l Joint Research
• [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: ICPS2018
  • Int'l Joint Research
• [Presentation] Tomonaga-Luttinger liquid behaviour in 1D electron system fabricated from InAs Quantum well holding strong spin-orbit interaction (2018)
  • Author(s): Y. Sato, S. Matsuo, C.-H. Hsu, P. Stano, D. Loss, K, Ueda, Y, Takeshige, H. Kamata, J.S. Lee, B. Shojaei, J. Shabani, C. Palmstrom, Y. Tokura, S. Tarucha,
  • Organizer: ICPS2018
  • Int'l Joint Research
• [Presentation] Direct Measurement on the Kondo Cloud Length in a Quantum Dot Coupled to a 1D Fabry-Perot Interferometer (2018)
  • Author(s): M. Yamamoto, I. V. Borzenets, J. C. H. Chen, A. Ludwig, A. D. Wieck, S. Tarucha
  • Organizer: ICPS2018
  • Int'l Joint Research
• [Presentation] Observation of Cooper pair splitting in a ballistic Josephson junction through double InAs nanowires Duration of presentation (2018)
  • Author(s): K. Ueda , S. Matsuo , H. Kamata , Y. Sato , Y. Takeshige , K. Li , L. Samuelson , S. Jeppesen , H. Xu , S. Tarucha
  • Organizer: ICPS2018
  • Int'l Joint Research / Invited
• [Presentation] 量子ドットと一次元ファブリ・ペロー干渉計の結合系を利用した近藤雲の広がりの検証実験 (2018)
  • Author(s): 山本倫久・Ivan V. Borzenets・Jason Chen・Jeongmin Shim・Heung-Sun Sim・樽茶清悟
  • Organizer: 新学術領域「ハイブリッド量子科学」領域会議
• [Presentation] High-fidelity spin manipulation toward fault-tolerant quantum computation (2018)
  • Author(s): Seigo Tarucha
  • Organizer: 10th International School and Conference on Physics and Applications of Spin Phenomena in Solids (PASPS10)
  • Int'l Joint Research / Invited
• [Presentation] QND spin readout and cohorent entanglement transfer with a triple quantum dot (2018)
  • Author(s): Seigo Tarucha
  • Organizer: the international workshop “Quantum Information and Correlation in Quantum Dots”
  • Int'l Joint Research / Invited
• [Presentation] Research on Spin-based Quantum Computing with Quantum Dots (2018)
  • Author(s): Seigo Tarucha
  • Organizer: Japan-EU Joint Workshop on Advanced Quantum Technology for Future Innovation
  • Int'l Joint Research / Invited
• [Presentation] Observation of ballistic Cooper pair splitting (2018)
  • Author(s): K. Ueda , S. Matsuo, H. Kamata, Y. Sato, Y. Takeshige K. Li, S. Jeppesen, L. Samuelson, H. Q. Xu and S.Tarucha
  • Organizer: 8th Summer School on Semiconductor/Superconducting Quantum Coherence Effect and Quantum Information
• [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] Determination of the direction of the spin-orbit field in a physically-defined p-type MOS silicon double quantum dot (2018)
  • Author(s): M. Marx, J. Yoneda, P. Stano, K. Takeda, Y. Yamaoka, T. Otsuka,T. Nakajima, A. Noiri, S. Li, T. Kodera, and S. Tarucha
  • Organizer: 8th Summer School on Semiconductor/Superconducting Quantum Coherence Effect and Quantum Information
• [Presentation] Towards parametric amplification of dispersive gate readout (2018)
  • Author(s): J. S. Rojas-Arias , T. Nakajima , M. Marx , G. Allison , M. Delbecq , J. Yoneda , K. Takeda , A. Noiri , T. Otsuka , S. Li , and S. Tarucha
  • Organizer: 8th Summer School on Semiconductor/Superconducting Quantum Coherence Effect and Quantum Information
• [Presentation] Towards Electrical Control of Interlayer Excitons in Heterostructures of Monolayer Transition Metal Dichalcogenides. (2018)
  • Author(s): Takamoto Yokosawa, Alexander Popert, Michael D.Fraser, Yuya Shimazaki, Kenji Watanabe, Takashi Taniguchi, Michihisa Yamamoto, Atac Imamoglu, Seigo Tarucha
  • Organizer: 8th Summer School on Semiconductor/Superconducting Quantum Coherence Effect and Quantum Information
• [Presentation] Shapiro response of gate-tunable Josephson junctions on (Bi1-xSbx)Te3 thin film (2018)
  • Author(s): Y.Takeshige, S.Matsuo, R.S.Deacon, K.Ueda, Y.Sato, Yi-Fan Zhao, Ling Zhang, Cui-Zu Chang, K.Ishibashi, S.Tarucha
  • Organizer: 8th Summer School on Semiconductor/Superconducting Quantum Coherence Effect and Quantum Information
• [Presentation] The scheme of quantum teleportation using electron-spin system in semiconductor quantum dots (2018)
  • Author(s): Y. Kojima, T. Nakajima, A. Noiri, J. Yoneda, T. Otsuka, K. Takeda, T. Ito , K. Kawasaki, A. Ludwig, A. D. Wieck and S. Tarucha
  • Organizer: 8th Summer School on Semiconductor/Superconducting Quantum Coherence Effect and Quantum Information
• [Presentation] Strong Electron-Electron Interactions of Tomonaga?Luttinger Liquid observed in InAs Quantum Wires (2018)
  • Author(s): Yosuke Sato,Sadashige Matsuo, Chen-Hsuan Hsu, Kento Ueda, Yuusuke Takeshige, Hiroshi Kamata, Joon Sue Lee, Borzoyeh Shojaei, Javad Shabani,Chris Palmstrm,Yasuhiro Tokura,Peter Stano,Daniel Loss,and Seigo Tarucha
  • Organizer: 8th Summer School on Semiconductor/Superconducting Quantum Coherence Effect and Quantum Information
• [Presentation] spin-valley Hall effect in zero Landau level of bilayer graphene (2018)
  • Author(s): Tanaka Miuko, Shimazaki Yuya, Borzenets Ivan, Taniguchi Takashi, Watanabe Kenji, Yamamoto Michihisa, Tarucha Seigo
  • 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] Four Single-spin Rabi Oscillations in a Quadruple Quantum Dot (2018)
  • Author(s): T. Ito, T. Otsuka, T. Nakajima, M. R. Delbecq, S. Amaha, J. Yoneda, K. Takeda, A. Noiri, G. Allison, A. Ludwig, A. D. Wieck, and S. Tarucha
  • Organizer: 8th Summer School on Semiconductor/Superconducting Quantum Coherence Effect and Quantum Information
• [Presentation] Interferrometer by single electron driven by surface acoustic wave (2018)
  • Author(s): R. Ito, S. Takada, C. Bauerle, A.Ludwig, A. D. Wieck, M. Yamamoto, and S. Tarucha
  • Organizer: 8th Summer School on Semiconductor/Superconducting Quantum Coherence Effect and Quantum Information
• [Presentation] Measurement on the Kondo cloud length using a quantum dot coupled to a ID Fabry-Perot (2018)
  • Author(s): Michihisa Yamamoto
  • Organizer: 8th Summer School on Semiconductor/Superconducting Quantum Coherence Effect and Quantum Information
• [Presentation] トポロジカル絶縁体(Bi1-xSbx)2Te3のジョセフソン接合を流れる超伝導電流のゲート制御 (2018)
  • Author(s): 武重有祐, 松尾貞茂, Russell S. Deacon, 上田健人, 佐藤洋介, Yi-Fan Zhao, Ling Zhang, Cui-Zu Chang, 石橋幸治, 樽茶清悟
  • Organizer: 日本物理学会2018年秋季大会
• [Presentation] InAs二重ナノ細線を用いた一次元伝導体におけるクーパー対分離の磁場依存性 (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2018年秋季大会
• [Presentation] Spin control with triple quantum dots: three spin qubits, CPHASE, entanglement transfer, and QND (2018)
  • Author(s): Seigo Tarucha
  • Organizer: 4th School and Conference on Spin-Based Quantum Information Processing
  • Int'l Joint Research / 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] 単層 遷移金属ダイカルコゲナイドヘテロ積層構造における層間励起子の電気的駆動に向けて (2018)
  • Author(s): 横澤 峻元, Alexander Popert, Michael D. Frazer, 島崎 佑也, 渡邊 賢司, 谷口 尚, 山本 倫久, Atac Imamoglu, 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] ２層グラフェンのゼロランダウ準位におけるスピン・バレーホール効果の観測 (2018)
  • Author(s): 田中 未羽子、島崎佑也、Ivan Borzenets、渡辺賢司、谷口尚、山本倫久、樽茶清悟
  • Organizer: 日本物理学会2018年秋季大会
• [Presentation] Angle dependent spin-orbit interaction in a physically defined silicon double quantum dot (2018)
  • Author(s): Marian Marx, Jun Yoneda, Tomohiro Otsuka, Kenta Takeda, Yu Yamaoka, Takashi Nakajima,Sen Li, Akito Noiri, Tetsuo Kodera and Seigo Tarucha
  • Organizer: The 50th Solis State Devices and Materials
• [Presentation] Proximity-induced Superconductivity in Double Nanowires Mediated by Cooper Pair Splitting: Necessary Condition for Creating Generalized Majorana Fermion (2018)
  • Author(s): Seigo Tarucha
  • Organizer: ENS-UT Workshop on Physics
  • Int'l Joint Research / Invited
• [Presentation] Mesoscopic quantum electrodynamics with carbon nanotubes (2018)
  • Author(s): Seigo Tarucha
  • Organizer: France-Japan Bilateral Workshop on Hybrid Quantum Systems
  • Int'l Joint Research / Invited
• [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: QUAntum Theory & Technology Un-Official Meeting
  • Invited
• [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] Strong electron-electron interaction and Non-local superconducting proximity effect in InAs nanowires (2018)
  • Author(s): S.Matsuo
  • Organizer: Topological Materials Science Seminar (81)
  • Invited
• [Presentation] Determination of the direction of the spin-orbit field in a physicallydefined p-type MOS silicon double quantum dot (2018)
  • Author(s): M. Marx, J. Yoneda, P. Stano, T. Otsuka, K. Takeda, S. Li, Y. Yamaoka, T. Nakajima, A. Noiri, D. Loss, T. Kodera and S. Tarucha
  • Organizer: the 2018 Silicon Quantum Electronics Workshop
  • Int'l Joint Research
• [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
  • Int'l Joint Research
• [Presentation] 量子ドットスピンを用いた量子情報 (2018)
  • Author(s): 樽茶清悟
  • Organizer: 量子エレクトロニクス研究会
  • Invited
• [Presentation] Polarization-to-spin conversion and entanglement absorption via a double quantum dot device (2018)
  • 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] 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: The ICSNN (International Conference on Superlattices, Nanostructures and Nanodevices)
  • Int'l Joint Research
• [Presentation] Breakdown of Pauli spin blockade induced by non-equilibrium phonon in a GaAs double quantum dot (2018)
  • Author(s): S. Matsuo, K. Kuroyama, J. Muramoto, S. R. Valentin, A. Ludwig, A. D. Wieck, Y. Tokura and S. Tarucha
  • Organizer: 平成30年度スピン変換年次報告会
• [Presentation] Fabrications and transport properties of SiGe self-assembled quantum dots (2018)
  • Author(s): Tanaka, K. Kawaguchi, H. Kiyama, M. Bamesreiter, D. Bougeard, A. Oiwa
  • Organizer: 2018 International Conference on Solid State Devices and Materials (SSDM2018)
  • Int'l Joint Research
• [Presentation] Transport through quantum dots formed in a (110) GaAs quantum well (2018)
  • Author(s): T. Nakagawa, R. Fukai, Y. Sakai, Y. Sakai, T. Fujita, H. Kiyama, T. Nakajima, J. Ritzmann, A. Ludwig, A. D. Wieck,S. Tarucha, and A. Oiwa
  • Organizer: Spin qubit 4
  • Int'l Joint Research
• [Presentation] Photon-spin conversion using gate-defined GaAs quantum dots (2018)
  • Author(s): Akira Oiwa
  • Organizer: QD2018
  • Int'l Joint Research / Invited
• [Presentation] 量子ドットにおける光-電子スピン量子状態変換 (2018)
  • Author(s): 大岩顕
  • Organizer: 日本物理学会2018年秋季大会 シンポジウム「ナノスピン変換から強結合スピントロニクスへ」
  • Invited
• [Presentation] 単一光子から単一電子スピンへの量子状態変換と強結合化に向けて (2018)
  • Author(s): 大岩顕
  • Organizer: 第12回物性科学領域横断研究会
• [Presentation] アンドープGaAs/AlGaAs 量子井戸を用いたMOSデバイスの作製と界面準位による不安定性 (2018)
  • Author(s): 林亮太, 藤田高史, 井手西広樹, 好田誠, 新田淳作, 大岩顕
  • Organizer: 第12回物性科学領域横断研究会
• [Presentation] Detection of photo-excited spins in a (110)-GaAs/AlGaAs QW by using inverse spin Hall effect (2018)
  • Author(s): T. Chatani, T. Nakagawa, J. Ritzmann, A. Ludwig, A. Wieck, Y. Sakai, A. Oiwa
  • Organizer: 第8回半導体/超伝導体量子効果と量子情報の夏期研修会
• [Presentation] Spin-valleytronics in graphene (2018)
  • Author(s): M. Yamamoto
  • Organizer: 6th International Conference on Superconductivity and Magnetism (ICSM2018)
  • Int'l Joint Research / Invited
• [Presentation] Non-universal transmission phase behaviour of a large quantum dot (2018)
  • Author(s): H. Edlbauer, S. Takada, G. Roussely, M. Yamamoto, S. Tarucha, A. Ludwig, A.D. Wieck, T. Meunier, C. B?uerle
  • Organizer: 34th International conference on the physics of semiconductors (ICPS2018)
  • Int'l Joint Research
• [Presentation] Direct measurement on the Kondo cloud length in a quantum dot coupled to a 1D Fabry-Perot interferometer (2018)
  • Author(s): Borzenets, Ivan; Yamamoto, Michihisa; Chen, Jason; Arne, Ludwig; Wieck, Andreas; Tarucha, Seigo
  • Organizer: 20th International Conference on Superlattices, Nanostructures and Nanodevices (ICSNN)
  • Int'l Joint Research
• [Presentation] Spin-valleytronics in bilayer graphene (2018)
  • Author(s): Michihisa Yamamoto
  • Organizer: 3rd International Conference on Emerging Advanced Nanomaterials, (ICEAN2018)
  • Int'l Joint Research / Invited
• [Presentation] A localized spin in an electron wave cavity: measurement on the Kondo cloud length (2018)
  • Author(s): Michihisa Yamamoto
  • Organizer: Quantum Science Symposium Europe-2018
  • Int'l Joint Research / Invited
• [Presentation] Spin-valleytronics in atomic layer materials (2018)
  • Author(s): Michihisa Yamamoto
  • Organizer: 1st International Workshop on 2D Materials
  • Int'l Joint Research / Invited
• [Remarks] 理化学研究所 量子機能システム研究グループのホームページ
  • URL: http://qfsrg.riken.jp/index.html
• [Remarks] 大阪大学 産業科学研究所 大岩研究室のホームページ
  • URL: https://www.sanken.osaka-u.ac.jp/labs/qse/index.html