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

2016 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: 3スピン量子ビット / 高速ラビ振動 / 電子対分離 / 超伝導－ナノ 細線接合 / もつれ光子対 / 量子状態変換

Outline of Annual Research Achievements

（１）３重GaAs量子ドットを用いて、３量子ビット化、遠隔もつれ操作、３スピン交換結合操作を実現し、またCPHASEとQNDが実現可能であることを確認した。GaAsドットの核スピン揺らぎの実時間計測、帰還回路による同揺らぎ抑制の技術開発を行った。4重ドットでは可視度が低いものの4ビット化、5重ドットでは拡張性のある電子制御を達成した。他にスピン3値読み出し法を開発した。天然Siの量子ドットを用いて世界最高のゲート忠実度99.6%を達成した。この値は誤り耐性閾値を超え、産業用Siによる量子コンピュータ構築の展望を拓く。
（２）表面弾性波で動く量子ドットに電子が閉じ込められている場合とそうでない場合の電気伝導特性の違いを明らかにした。また、表面弾性波で動く量子ドット中の２電子分離の効率を正確に評価するための電流雑音測定系の構築に取り組んだ。同時に、電子対分離を用いたベル測定を検討した。
（３）無磁場でのマヨラナ粒子生成に向けて超伝導体/並列二重細線を作製し、細線中の量子ドットを介したクーパー対分離を観測した。エピ成長した超伝導体半導体基板からコルビノ型ジョセフソン接合を作製し、超伝導電流の磁場依存性からジョセフソン渦糸の大きさとゲート依存性を評価した。InSb量子井戸薄膜のウェットエッチにより、サイドゲート型量子ポイントコンタクト形成法を確立した。現在1次元伝導の確認実験中。
（４）GaAs量子ドットの光電子励起効率からゼーマン分裂した軽い正孔のエネルギーを特定し、その選択励起に成功した。また、デバイス構造や測定系の改良により電荷読み出しの高速化（1 usec）、光子電子変換効率の向上（~5 %）に成功した。 (110)GaAs系量子井戸の時間分解磁気光学効果測定による重い正孔からの量子状態の実証を試みた。また表面ゲート法により同2次元電子系と量子ポイントコンタクトの伝導を評価した。

Current Status of Research Progress

2: Research has progressed on the whole more than it was originally planned.

Reason

（１）天然Siを用いた世界最高忠実度の達成は、Siがスピン量子計算の産業化にとって朗報であり、インパクトが大きい。当初の予想以上の成果である。GaAs量子ドットにおける核スピン環境の実時間測定、3重量子ドットによるQNDは予定外の成果である。4重量子ドットのRabi測定は予定通り、5重量ドットの電子状態制御は1年前倒しの成果、3値スピン読み出しは、当初の予定外の成果である。全般に、当初の予想を上回る進捗といえる。
（２）電子対の量子電子光学実験に関しては、電子が表面弾性波で閉じ込められている場合と閉じ込められていない場合を電気伝導特性によって見分けられるようになった。また、電子対分離を用いたベル測定の方針が定まった。これらにより、見通しが良くなった。
（３）並列二重ナノ細線で、量子ドットを介してはいるが、初めてクーパー対分離の実証に成功しており、これは来年度以降の細線での分離の観測とマヨラナ粒子の実現へとつながる結果である。また、コルビノ型ジョセフソン接合に関しても、将来的なマヨラナ粒子の交換操作につながる結果であり、次年度以降予定しているトポロジカル絶縁体のジョセフソン接合において重要な知見が得られた。伝導性のあるInSb量子井戸とその量子ポイントコンタクトの作製まで達成できたが、量子化伝導度の観測は実現できていない。高移動度化が必要である。
（４）本年度は光子から電子スピンへの量子状態転写の実現に不可欠な、軽い正孔の選択励起に成功しており、計画に沿って順調に推移している。また、変換効率の向上と測定の高速化によって、上記の量子状態転写の実験がより効率的に行えるようになった。時間分解カー回転により重い正孔からのアンサンブル量子状態転写の実証を目指したが、いまだ実証できてない。(110)GaAs基板上の量子ドット作製は順調に進展した。

Strategy for Future Research Activity

（１）3重量子ドットを用いた複合2量子ビットによるCPHASEの高速化とQNDの実証実験、４重量子ドットのよるRabi振動可視度の改善、GaAs量子ドットにおけるデコヒーレンス抑制のための帰還回路の実証実験、2次元多重量子ドット化に向けた基本構造（３角形３重量子ドット）の開発を行う。Si量子ドットについては、さらなるゲート忠実度の向上を目指し、同位体制御Siの量子ドットによるスピン量子ビットを実現し、忠実度を評価する。
（２）表面弾性波で動く量子ドット中の電子対を分離させる実験に関しては、精度の高い電流雑音測定系の構築に引き続き取り組み、分離効率の評価を行う。また、グラフェンを用いたクーパー対分離の追加テーマにも取り組み、グラフェン量子ドットや量子ホール状態のグラフェンを利用した高効率のクーパー対分離を目指す。
（３）無磁場でのマヨラナ粒子の実現に必須となる、電子間相互作用による弾道的な電子輸送領域でのクーパー対分離現象を並列二重ナノ細線と超伝導体の接合において観測することを目指す。また、上記の電子間相互作用に関連し、InAsナノ細線における電子間相互作用の大きさを定量評価するために朝永ラッティンジャー液体の性質を実験的に観測することを目指す。バッファ層の厚膜化と井戸構造の改良によりInSb量子井戸のさらなる高移動度化を目指すとともに、エピタキシャル超伝導電極と含め超伝導接合の作製を検討する。
（４）光学スピン閉塞効果による量子状態転写実証の結果を追補するため、単一光子から単一スピンへの量子状態転写を二重量子ドットでのスピン閉塞効果を用いた単発読み出しにより実証することを目指す。また、単発スピン読み出しの精度に与えるフォノンの効果を実時間測定から明らかにすることを目指す。(110)GaAs基板上の量子ドット形成と電荷検出を実現し、単一光子実験の実験を開始する。

Research Products

• [Journal Article] Classical information transfer between distant quantum dots using individual electrons in fast moving quantum dots (2017)
  • Author(s): Hermelin Sylvain、Bertrand Benoit、Takada Shintaro、Yamamoto Michihisa、Tarucha Seigo、Ludwig Arne、Wieck Andreas D.、Buerle Christopher、Meunier Tristan
  • Journal Title: Physica Status Solidi Volume: 254 Pages: 1600673～1600673
  • DOI: 10.1002/pssb.201600673
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Conversion from single photon to single electron spin using electrically controllable quantum dots (2017)
  • Author(s): A. Oiwa, T. Fujita, H. Kiyama, G. Allison, A. Ludwig, A.D. Wieck, and S. Tarucha
  • Journal Title: JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN Volume: 86 Pages: 011008
  • DOI: 10.7566/JPSJ.86.011008
  • Peer Reviewed / Open Access
• [Journal Article] Analysis of physical requirements for simple three-qubit and nine-qubit quantum error correction on quantum-dot and superconductor qubits (2017)
  • Author(s): I. Sohn, S. Tarucha, and B.S. Choi
  • Journal Title: PHYSICAL REVIEW A Volume: 95 Pages: 012306
  • DOI: 10.1103/PhysRevA.95.012306
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Detection and control of charge states in a quintuple quantum dot (2016)
  • Author(s): Ito Takumi、Otsuka Tomohiro、Amaha Shinichi、Delbecq Matthieu R.、Nakajima Takashi、Yoneda Jun、Takeda Kenta、Allison Giles、Noiri Akito、Kawasaki Kento、Tarucha Seigo
  • Journal Title: SCIENTIFIC REPORTS Volume: 6 Pages: 39113
  • DOI: 10.1038/srep39113
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Ballistic Graphene Josephson Junctions from the Short to the Long Junction Regimes (2016)
  • Author(s): I.V. Borzenets, F. Amet, C.T. Ke, A.W. Draelos, M.T. Wei, A. Seredinski, K. Watanabe, T. Taniguchi, Y. Bomze, M. Yamamoto, S. Tarucha, and G. Finkelstein
  • Journal Title: PHYSICAL REVIEW LETTERS Volume: 117 Pages: 237002
  • DOI: 10.1103/PhysRevLett.117.237002
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Single-Shot Ternary Readout of Two-Electron Spin States in a Quantum Dot Using Spin Filtering by Quantum Hall Edge States (2016)
  • Author(s): H. Kiyama, T. Nakajima, S. Teraoka, A. Oiwa, and S. Tarucha
  • Journal Title: PHYSICAL REVIEW LETTERS Volume: 117 Pages: 236802
  • DOI: 10.1103/PhysRevLett.117.236802
  • Peer Reviewed / Open Access
• [Journal Article] Signatures of Hyperfine, Spin-Orbit, and Decoherence Effects in a Pauli Spin Blockade (2016)
  • Author(s): T. Fujita, P. Stano, G. Allison, K. Morimoto, Y. Sato, M. Larsson, J.-H. Park, A. Ludwig, A.D. Wieck, A. Oiwa, and S. Tarucha
  • Journal Title: PHYSICAL REVIEW LETTERS Volume: 117 Pages: 206802
  • DOI: 10.1103/PhysRevLett.117.206802
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Single-electron Spin Resonance in a Quadruple Quantum Dot (2016)
  • Author(s): Otsuka Tomohiro、Nakajima Takashi、Delbecq Matthieu R.、Amaha Shinichi、Yoneda Jun、Takeda Kenta、Allison Giles、Ito Takumi、Sugawara Retsu、Noiri Akito、Ludwig Arne、Wieck Andreas D.、Tarucha Seigo
  • Journal Title: SCIENTIFIC REPORTS Volume: 6 Pages: 31820
  • DOI: 10.1038/srep31820
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Low-temperature behavior of transmission phase shift across a Kondo correlated quantum dot (2016)
  • Author(s): S. Takada, M. Yamamoto, C. Bauerle, A. Alex, J. von Delft, A. Ludwig, A.D. Wieck, and S. Tarucha
  • Journal Title: PHYSICAL REVIEW B Volume: 94 Pages: 081303
  • DOI: 10.1103/PhysRevB.94.081303
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] A fault-tolerant addressable spin qubit in a natural silicon quantum dot (2016)
  • Author(s): Takeda K.、Kamioka J.、Otsuka T.、Yoneda J.、Nakajima T.、Delbecq M. R.、Amaha S.、Allison G.、Kodera T.、Oda S.、Tarucha S.
  • Journal Title: SCIENCE ADVANCES Volume: 2 Pages: 694～694
  • DOI: 10.1126/sciadv.1600694
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Critical Current Scaling in Long Diffusive Graphene-Based Josephson Junctions (2016)
  • Author(s): Ke Chung Ting、Borzenets Ivan V.、Draelos Anne W.、Amet Francois、Bomze Yuriy、Jones Gareth、Craciun Monica、Russo Saverio、Yamamoto Michihisa、Tarucha Seigo、Finkelstein Gleb
  • Journal Title: NANO LETTERS Volume: 16 Pages: 4788～4791
  • DOI: 10.1021/acs.nanolett.6b00738
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Fast spin information transfer between distant quantum dots using individual electrons (2016)
  • Author(s): B. Bertrand, S. Hermelin, S. Takada, M. Yamamoto, S. Tarucha, A. Ludwig, A.D. Wieck, C. Bauerle, and T. Meunier
  • Journal Title: Nature Nanotechnology Volume: 11 Pages: 672
  • DOI: 10.1038/NNANO.2016.82
  • Open Access / Int'l Joint Research
• [Journal Article] Injection of a single electron from static to moving quantum dots (2016)
  • Author(s): Bertrand Benoit、Hermelin Sylvain、Mortemousque Pierre-Andr?、Takada Shintaro、Yamamoto Michihisa、Tarucha Seigo、Ludwig Arne、Wieck Andreas D、B?uerle Christopher、Meunier Tristan
  • Journal Title: NANOTECHNOLOGY Volume: 27 Pages: 214001～214001
  • DOI: 10.1088/0957-4484/27/21/214001
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Supercurrent in the quantum Hall regime (2016)
  • Author(s): Amet F.、Ke C. T.、Borzenets I. V.、Wang J.、Watanabe K.、Taniguchi T.、Deacon R. S.、Yamamoto M.、Bomze Y.、Tarucha S.、Finkelstein G.
  • Journal Title: SCIENCE Volume: 352 Pages: 966～969
  • DOI: 10.1126/science.aad6203
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Coherent electron-spin-resonance manipulation of three individual spins in a triple quantum dot (2016)
  • Author(s): Noiri A.、Yoneda J.、Nakajima T.、Otsuka T.、Delbecq M. R.、Takeda K.、Amaha S.、Allison G.、Ludwig A.、Wieck A. D.、Tarucha S.
  • Journal Title: APPLIED PHYSICS LETTERS Volume: 108 Pages: 153101～153101
  • DOI: 10.1063/1.4945592
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] 単一光子から単一電子スピンへの変換と検出 (2016)
  • Author(s): 大岩顕
  • Journal Title: 応用物理 Volume: 85 Pages: 769-775
  • Peer Reviewed / Open Access
• [Journal Article] Fast spin information transfer between distant quantum dots using individual electrons (2016)
  • Author(s): Bertrand B.、Hermelin S.、Takada S.、Yamamoto M.、Tarucha S.、Ludwig A.、Wieck A. D.、B?uerle C.、Meunier T.
  • Journal Title: Nature Nanotechnology Volume: 11 Pages: 672～676
  • DOI: 10.1038/nnano.2016.82
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] 二次元六角格子系におけるバレーホール効果 (2016)
  • Author(s): 島崎佑也，山本倫久，Ivan V. Borzenets，樽茶清悟
  • Journal Title: 固体物理 Volume: 51 Pages: 429-439
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] 電気的に制御した二層グラフェンにおいてバレー流の生成、検出に成功 －バレー自由度を利用した低消費電力エレクトロニクスの実現へ向けて進展－ (2016)
  • Author(s): 島崎佑也，山本倫久，樽茶清悟
  • Journal Title: 電気情報通信学会誌 Volume: 99 Pages: 473
  • Peer Reviewed / Open Access
• [Presentation] Spin dynamics and QND measurement with quantum dots (2017)
  • Author(s): S. Tarucha
  • Organizer: 2017 Sweden - Japan International workshop on quantum nanophysics and nanoelectronics (QNANO)
  • Int'l Joint Research / Invited
• [Presentation] Quantum manipulation and transfer of single electron spins with microwave burst (2017)
  • Author(s): S. Tarucha
  • Organizer: Workshop on quantum dynamics and response
  • Int'l Joint Research / Invited
• [Presentation] Strong coherent drive of spins in quantum dots with microwave photons (2017)
  • Author(s): S. Tarucha
  • Organizer: Workshops on virtual photons in ultra-strongly coupled systems
  • Int'l Joint Research / Invited
• [Presentation] Ballistic graphene Josephson junctions from the short to the long regime (2017)
  • Author(s): A. Seredinski, I. Borzenets, F. Amet, C-T. Ke, A. Draelos, M-T. Wei, K. Watanabe, T. Taniguchi, Y. Bomze, M. Yamamoto, S. Tarucha, and G. Finkelstein
  • Organizer: APS March Meeting 2017
  • Int'l Joint Research
• [Presentation] The transport mechanism of supercurrents in the quantum Hall regime (2017)
  • Author(s): M-T. Wei, C-T. Ke, A. Draelos, A. Seredinski, I. Borzenets, K. Watanabe, T. Taniguchi, R. Deacon, M. Yamamoto, Y. Bomze, S. Tarucha, F. Amet, and G. Finkelstein
  • Organizer: APS March Meeting 2017
  • Int'l Joint Research
• [Presentation] Current-phase relations in low carrier density graphene Josephson junction (2017)
  • Author(s): P. Kratz, F. Amet, C. Watson, K. Moler, C-T. Ke, I. Borzenets, K. Watanabe, T. Taniguchi, R. Deacon, M. Yamamoto, Y. Bomze, S. Tarucha, and G. Finkelstein
  • Organizer: APS March Meeting 2017
  • Int'l Joint Research
• [Presentation] Ballistic Graphene Josephson Junctions from the Short to the Long Junction Regimes: Part I- Governing Energy Scales of the Short and Long Junctions (2017)
  • Author(s): I. Borzenets, F. Amet, C-T. Ke, A. Draelos, M-T. Wei, A. Seredinski, K. Watanabe, T. Taniguchi, Y. Bomze, M. Yamamoto, S. Tarucha, and G. Finkelstein
  • Organizer: APS March Meeting 2017
  • Int'l Joint Research
• [Presentation] Ballistic Graphene Josephson Junctions from the Short to the Long Junction Regimes: Part II- Critical current scaling of the Short and Long Junctions (2017)
  • Author(s): C-T. Ke, I. Borzenets, F. Amet, A. Draelos, M-T. Wei, A. Seredinski, K. Watanabe, T. Taniguchi, Y. Bomze, M. Yamamoto, S. Tarucha, and G. Finkelstein
  • Organizer: APS March Meeting 2017
  • Int'l Joint Research
• [Presentation] Current-phase relations in low carrier density graphene Josephson junctions (2017)
  • Author(s): P. Kratz, F. Amet, C. Watson, K. Moler, C-T. Ke, I. Borzenets, K. Watanabe, T. Taniguchi, R. Deacon, M. Yamamoto, Y. Bomze, S. Tarucha, and G. Finkelstein
  • Organizer: APS March Meeting 2017
  • Int'l Joint Research
• [Presentation] Effects of the environment on the switching current in graphene-based Josephson Junctions (2017)
  • Author(s): I. Borzenets, C-T. Ke, F. Amet, M-T. Wei, M. Yamamoto, Y. Bomze, S. Tarucha, and G. Finkelstein
  • Organizer: APS March Meeting 2017
  • Int'l Joint Research
• [Presentation] The transport mechanism of supercurrents in the quantum Hall regime (2017)
  • Author(s): M-T. Wei, C-T. Ke, I. Borzenets, J. Wang, K. Watanabe, T. Taniguchi, R. Deacon, M. Yamamoto, Y. Bomze, S. Tarucha, F. Amet, and G. Finkelstein
  • Organizer: APS March Meeting 2017
  • Int'l Joint Research
• [Presentation] Supercurrent in the quantum Hall regime: part I (2017)
  • Author(s): F. Amet, C-T. Ke, I. Borzenets, J. Wang, K. Watanabe, T. Taniguchi, R. Deacon, M. Yamamoto, Y. Bomze, S. Tarucha, F. Amet, and G. Finkelstein
  • Organizer: APS March Meeting 2017
  • Int'l Joint Research
• [Presentation] 同位体制御Si/SiGe電子スピン量子ビットの高速量子操作忠実度 (2017)
  • Author(s): 米田淳,武田健太,大塚朋廣,中島峻, Matthieu R. Delbecq,Giles Allison,本田拓夢,小寺哲夫,小田俊理,星裕介,宇佐美徳隆,伊藤公平,樽茶清悟
  • Organizer: 日本物理学会
• [Presentation] 4重量子ドットにおけるRabi振動の観測 (2017)
  • Author(s): 伊藤匠,大塚朋廣,中島峻,Matthieu R. Delbecq,天羽真一,米田淳,武田健太,野入亮人,Giles Allison,Arne Ludwig,Andreas D. Wieck,樽茶清悟
  • Organizer: 日本物理学会
• [Presentation] 異種スピン量子ビット間の制御NOTゲートⅡ (2017)
  • Author(s): 中島峻,野入亮人,米田淳,大塚朋廣,武田健太,Matthieu R. Delbecq,川崎賢人,GilesAllison,Arne Ludwig,Andreas D. Wieck,樽茶清悟
  • Organizer: 日本物理学会
• [Presentation] 異種スピン量子ビット間の制御NOTゲート I (2017)
  • Author(s): 野入亮人,中島峻,米田淳,大塚朋廣,武田健太,Matthieu R. Delbecq,川崎賢人,Giles Allison,Arne Ludwig,Andreas D. Wieck,樽茶清悟
  • Organizer: 日本物理学会
• [Presentation] h-BN上InAs量子細線の電気伝導特性 (2017)
  • Author(s): 鎌田大,R. S. Deacon,松尾貞茂,馬場翔二,K. Li, H. Q. Xu,大岩顕,樽茶清悟
  • Organizer: 日本物理学会
• [Presentation] 量子ホールエッジ状態と結合した量子ドットにおける二電子スピン単発三値読み出し (2017)
  • Author(s): 木山治樹, 中島峻, 寺岡総一郎, 大岩顕, 樽茶清悟
  • Organizer: 日本物理学会第72回年次大会
• [Presentation] Graphene-based valleytronics and superconductor electronics (2017)
  • Author(s): M. Yamamoto
  • Organizer: SRC Winter Workshop on Quantum Coherence and Topological Matter
  • Int'l Joint Research / Invited
• [Presentation] グラフェンにおけるトポロジカルバレー流 (2017)
  • Author(s): 山本倫久
  • Organizer: 第６２回スピンエレクトロニクス専門研究会
  • Invited
• [Presentation] Spin dynamics and QND spin measurement with quantum dots (2016)
  • Author(s): S. Tarucha
  • Organizer: The first international conference on Topological Orders and Emergent Spacetime on Quantum Simulator
  • Int'l Joint Research / Invited
• [Presentation] QND readout and CPHASE using hybrid spin-1/2 and singlet-triplet spin qubits with a triple quantum dot (2016)
  • Author(s): S. Tarucha
  • Organizer: The 8th International Workshop on Solid-State Quantum Computing (IWSSQC)
  • Int'l Joint Research / Invited
• [Presentation] Multiple quantum dot spin qubits (2016)
  • Author(s): S. Tarucha
  • Organizer: Mini-School on Quantum Information Science
  • Int'l Joint Research / Invited
• [Presentation] Topological Mesoscopic Effects in Superconductor-semiconductor Nanostructure Junctions (2016)
  • Author(s): S. Tarucha
  • Organizer: Workshop Tokyo/ENS
  • Int'l Joint Research / Invited
• [Presentation] Hybrid Spin-1/2 and Singlet-Triplet Spin Qubits with a Triple Quantum Dot (2016)
  • Author(s): S. Tarucha
  • Organizer: Spin Coherence and Topological Order in Semiconductor Nanosystems
  • Int'l Joint Research / Invited
• [Presentation] Distance-independent Dephasing of Phase-controlled Spin Entanglement (2016)
  • Author(s): S. Tarucha
  • Organizer: International workshop on nano-spin conversion science & quantum spin dynamics
  • Int'l Joint Research / Invited
• [Presentation] Photon-electron spin Poincar interface using gate-defined quantum dots (2016)
  • Author(s): A. Oiwa
  • Organizer: International workshop on nano-spin conversion science & quantum spin dynamics
  • Int'l Joint Research / Invited
• [Presentation] Graphene-based valleytronics and superconductor devices (2016)
  • Author(s): M. Yamamoto
  • Organizer: 8th Intl Conf on Recent Progress in Graphene/2D Research (RPGR2016)
  • Int'l Joint Research / Invited
• [Presentation] High-fidelity spin qubits with Si/SiGe quantum dots (2016)
  • Author(s): S. Tarucha
  • Organizer: Silicon Quantum Information Processing:Towards Hybrid Quantum Circuits
  • Int'l Joint Research / Invited
• [Presentation] Superconductor junctions to nanowires and 2DEGs with strong spin-orbit interactions and topological insulators (2016)
  • Author(s): S. Tarucha
  • Organizer: Topological States of Matter
  • Int'l Joint Research / Invited
• [Presentation] Coherent Control of Spin in Semiconductor Quantum System (2016)
  • Author(s): S. Tarucha
  • Organizer: International Spintronics School
  • Int'l Joint Research / Invited
• [Presentation] Detection and control of charge states of a quintuple quantum dot in a scalable multiple quantum dot architecture (2016)
  • Author(s): S. Tarucha
  • Organizer: International Conference on The Physics of Semiconductors
  • Int'l Joint Research / Invited
• [Presentation] Quantum spin entanglement in a three-spin triple quantum dot (2016)
  • Author(s): S. Tarucha
  • Organizer: 33rd International Conference on the Physics of Semiconductors (ICPS2016)
  • Int'l Joint Research / Invited
• [Presentation] Dynamics and control of spin entanglement (2016)
  • Author(s): S. Tarucha
  • Organizer: 17th International Conference on Narrow Gap Semiconductors (NGS17)
  • Int'l Joint Research / Invited
• [Presentation] Valley Hall effect in bilayer graphene with electrically broken inversion symmetry (2016)
  • Author(s): Y. Shimazaki, Michihisa Yamamoto, Ivan V. Borzenets, Kenji Watanabe, Takashi Taniguchi, and Seigo Tarucha
  • Organizer: The 22nd International Conference on High Magnetic Fields in Semiconductor Physics(HMF-22)
  • Int'l Joint Research / Invited
• [Presentation] Quantum manipulation of electron spin entanglement with a triple quantum dot (2016)
  • Author(s): S. Tarucha
  • Organizer: QD2016
  • Int'l Joint Research / Invited
• [Presentation] Measurement of charge states in multiple quantum dotsutilizing multiplexed fast charge sensors (2016)
  • Author(s): T. Ito,T. Otsuka, S. Amaha,M.R. Delbecq,J. Yoneda,K. Takeda,A. Noiri,T. Nakajima,and S. Tarucha
  • Organizer: International workshop on nano-spin conversion science & quantum spin dynamics
  • Int'l Joint Research
• [Presentation] Hybrid cQED architecture as a model system for non-equilibrium physics in condensed matter (2016)
  • Author(s): M. Marx, G.Allison, M.R. Delbecq,T. Nakajima,J. Yoneda,K. Takeda, T. Otsuka,S. Amaha, and S. Tarucha
  • Organizer: International workshop on nano-spin conversion science & quantum spin dynamics
  • Int'l Joint Research
• [Presentation] Measuring the time dependence of a Rabi oscillation of an electron spin in a semiconductor quantum dot (2016)
  • Author(s): A. Noiri, T. Nakajima, J. Yoneda,T. Otsuka, K. Takeda, M.R. Delbecq, G. Allison, K. Kawasaki, A. Ludwig, A.D. Wieck, and S. Tarucha
  • Organizer: International workshop on nano-spin conversion science & quantum spin dynamics
  • Int'l Joint Research
• [Presentation] High-fidelity readout of two-spin correlations using a metastablecharge state in triple quantum dots (2016)
  • Author(s): T. Nakajima,M.R. Delbecq,T. Otsuka,P. Stano,S. Amaha,J. Yoneda,A. Noiri, K. Kawasaki,K. Takeda,G. Allison,A. Ludwig, A.D. Wieck,and S. Tarucha
  • Organizer: International workshop on nano-spin conversion science & quantum spin dynamics
  • Int'l Joint Research
• [Presentation] Centre resonance frequency shift of a strongly?driven spin qubit (2016)
  • Author(s): K. Takeda, J. Kamioka,J.Yoneda,T.Otsuka,?M.R. Delbecq,G. Allison,T. Nakajima,T. Kodera,S. Oda, and S. Tarucha
  • Organizer: International workshop on nano-spin conversion science & quantum spin dynamics
  • Int'l Joint Research
• [Presentation] High-fidelity spin control in an enriched Si/SiGe?quantum dot with a micromagnet (2016)
  • Author(s): J. Yoneda,K. Takeda, T. Otsuka,T. Nakajima,M.R. Delbecq,G.Allison,T.Honda,T. Kodera,S. Oda,Y. Hoshi, N. Usami, K. M. Itoh,and S. Tarucha
  • Organizer: International workshop on nano-spin conversion science & quantum spin dynamics
  • Int'l Joint Research
• [Presentation] Lowering electron temperature for measurement of spin relaxation in quantum dots (2016)
  • Author(s): G. Allison,J. Yoneda,K. Takeda,T. Otsuka,T. Nakajima,M.R. Delbecq,S. Amaha, A. Noiri, T. Ito,A. Ludwig, A.D. Wieck, and S. Tarucha
  • Organizer: International workshop on nano-spin conversion science & quantum spin dynamics
  • Int'l Joint Research
• [Presentation] Charge and spin dynamics in a quantum dot‐lead coupled system (2016)
  • Author(s): Tomohiro Otsuka, Takashi Nakajima, Matthieu R. Delbecq, Shinichi Amaha, Jun Yoneda, Kenta Takeda, Giles Allison, Peter Stano, Akito Noiri, Takumi Ito, Daniel Loss, Arne Ludwig, Andreas D. Wieck, and Seigo Tarucha
  • Organizer: International workshop on nano-spin conversion science & quantum spin dynamics
  • Int'l Joint Research
• [Presentation] Transport properties of InAs nanowires on hexagonal boronnitride (2016)
  • Author(s): Hiroshi Kamata, R. S. Deacon, S. Matsuo, S. Baba, K. Li, H. Q. Xu, A. Oiwa, and S. Tarucha
  • Organizer: International workshop on nano-spin conversion science & quantum spin dynamics
  • Int'l Joint Research
• [Presentation] Observation of quantum state transfer from single polarized photons to single electron (2016)
  • Author(s): M. Larsson, K. Kuroyama, S. Matsuo, S. R. Valentin, A. Ludwig, A.D.Wieck, A. Oiwa, S. Tarucha
  • Organizer: 9th International Conference on Physics and Applications of Spin-Related Phenomena in Solids
  • Int'l Joint Research
• [Presentation] Three single spin qubits in a triple quantum dot (2016)
  • Author(s): Akito Noiri, Takashi Nakajima, Jun Yoneda, Matthieu R. Delbecq, Tomohiro Otsuka,Kenta Takeda,Giles Allison,Shinichi Amaha, Arne Ludwig, Andreas D. Wieck, and Seigo Tarucha
  • Organizer: 9th International Conference on Physics and Applications of Spin-Related Phenomena in Solids
  • Int'l Joint Research
• [Presentation] Transport property of parallel double quantum dots formed in InAs double-nanowire junctions (2016)
  • Author(s): S. Baba, H. Kamata, S. Matsuo, R.S.Deacon, A.Oiwa, K. Li, H.Q. Xu, and S.Tarucha
  • Organizer: 9th International Conference on Physics and Applications of Spin-Related Phenomena in Solids
  • Int'l Joint Research
• [Presentation] Tunneling induced spin relaxation in a quantum dot-lead coupled system (2016)
  • Author(s): T. Ito,T. Otsuka, S. Amaha,Matthieu R. Delbecq,T. Nakajima,J. Yoneda, K. Takeda, G. Allison, A. Noiri, K. Kawasaki, M. R. Delbecq,S. Amaha, Arne Ludwig, Andreas D. Wieck, and Seigo Tarucha
  • Organizer: International Conference on The Physics of Semiconductors
  • Int'l Joint Research
• [Presentation] Valley and orbital dependent Landau level evolution in mirror symmetry broken ABA-stacked trilayer graphene (2016)
  • Author(s): Y. Shimazaki, T. Yoshizawa, I. V. Borzenets, K. Wang, X. Liu, K. Watanabe, T. Taniguchi, P. Kim, M. Yamamoto, and S. Tarucha
  • Organizer: 33rd International Conference on the Physics of Semiconductors
  • Int'l Joint Research
• [Presentation] Experimental generation of single photon-electron pairs from single entangled photon pairs (2016)
  • Author(s): K. Kuroyama, M.Larsson, T.Fujita, S.Matsuo, S.R.Valentin, A.Ludwig, A.D.Wieck, A. Oiwa, and S. Tarucha
  • Organizer: 33rd International Conference on the Physics of Semiconductors
  • Int'l Joint Research
• [Presentation] Quantum dephasing of spin qubits due to nonergodic noise (2016)
  • Author(s): M.R. Delbecq,T. Nakajima,P. Stano?T. Otsuka,S. Amaha,J. Yoneda, K. Takeda, G. Allison,A. Ludwig, A.D. Wieck, and S. Tarucha
  • Organizer: International Conference on The Physics of Semiconductors
  • Int'l Joint Research
• [Presentation] Ballistic transport properties of suspended InAs nanowires (2016)
  • Author(s): H. Kamata, R.S. Deacon, S. Matsuo, S. Baba, K. Li, H.Q. Xu, A. Oiwa, and S. Tarucha
  • Organizer: International Conference on The Physics of Semiconductors
  • Int'l Joint Research
• [Presentation] Temperature Scaling of the Critical Current in Long Ballistic Superconducting Graphene Junctions (2016)
  • Author(s): I. Borzenets, C-T. Ke, F. Amet, M. T. Wei, M. Yamamoto, Y. Bomze, S. Tarucha, and G. Finkelstein
  • Organizer: 33rd International Conference on the Physics of Semiconductors
  • Int'l Joint Research
• [Presentation] Andreev Reflection at a Junction of Spin-resolved Quantum Hall State and Superconductor (2016)
  • Author(s): Sadashige Matsuo, Kento Ueda, Shoji Baba, Hiroshi Kamata, Javad Shabani, Christopher Palmstrom, and Seigo Tarucha
  • Organizer: The 22nd International Conference on High Magnetic Fields in Semiconductor Physics
  • Int'l Joint Research
• [Presentation] Supercurrent in the quantum Hall regime (2016)
  • Author(s): C.-T. Ke, F. Amet, I. V. Borzenets, J. Wang, K. Watanabe, T. Taniguchi, R. S. Deacon, M. Yamamoto, Y. Bomze, S. Tarucha, and G. Finkelstein
  • Organizer: The 22nd International Conference on High Magnetic Fields in Semiconductor Physics
  • Int'l Joint Research
• [Presentation] AC Stark effect and optimal control ofa strongly driven Si/SiGe quantum dot spin qubit (2016)
  • Author(s): K. Takeda, J. Kamioka, J. Yoneda, T. Otsuka, M.R. Delbecq, G. Allison,T.Nakajima,T. Kodera, S. Oda, and S. Tarucha
  • Organizer: Silicon Quantum Electronics Workshop
  • Int'l Joint Research
• [Presentation] Measurement of charge states in Si/SiGe multiple quantum dots (2016)
  • Author(s): T. Otsuka, K. Takeda, J. Yoneda,T. Honda,M.R. Delbecq,G. Allison,M. Marx,T. Nakajima,T. Kodera, S. Oda, Y. Hoshi, N. Usami, K. M. Itoh and S. Tarucha
  • Organizer: Silicon Quantum Electronics Workshop
  • Int'l Joint Research
• [Presentation] Multiplexed reflectometry measurement of a gate-defined Si-MOS quantum dot (2016)
  • Author(s): J. Yoneda, T. Honda,K. Takeda,M. Marx, T. Otsuka, T. Nakajima,M.R. Delbecq, S. Amaha,G. Allison,T. Kodera, S. Oda, and S. Tarucha
  • Organizer: Silicon Quantum Electronics Workshop
  • Int'l Joint Research
• [Presentation] 半導体量子ドットの物理と量子情報技術への応用 (2016)
  • Author(s): 樽茶清悟
  • Organizer: 第77回応用物理学会秋季学術講演会
  • Invited
• [Presentation] High-fidelity quantum control of single and entangled spins with quantum dots (2016)
  • Author(s): S. Tarucha
  • Organizer: Seminar at Technical University of Delft
  • Int'l Joint Research / Invited
• [Presentation] Manipulation and detection of multiple spin qubits with quantum dots (2016)
  • Author(s): S. Tarucha
  • Organizer: Seminar at University College London
  • Int'l Joint Research / Invited
• [Presentation] Detection of spin-valley current in ABC trilayer graphene (2016)
  • Author(s): 田中未羽子,島崎祐也,山本倫久,樽茶清悟
  • Organizer: 第６回半導体量子効果と量子情報の夏期研修会
• [Presentation] Experimental study of Corbino geometry Josephson junctions (2016)
  • Author(s): 舘野瑞樹,松尾貞茂,樽茶清悟
  • Organizer: 第６回半導体量子効果と量子情報の夏期研修会
• [Presentation] Modifications to Kondo effect by distant quantum point contacts (2016)
  • Author(s): Chen C.-S. Jason, Michihisa Yamamoto，Seigo Tarucha
  • Organizer: 第６回半導体量子効果と量子情報の夏期研修会
• [Presentation] Coherence of a single electron spin in an isotopically purified Si/SiGe quantum dot?with a micromagnet (2016)
  • Author(s): Jun Yoneda,Kenta Takeda,Tomohiro Otsuka,Takashi Nakajima,Matthieu R. Delbecq,Giles Allison, Takumu Honda, Tetsuo Kodera,Shunri Oda, Yusuke Hoshi, Noritaka Usami, Kohei M. Itoh and Seigo Tarucha
  • Organizer: 半導体量子効果と量子情報の夏期研修会
• [Presentation] Parameter estimation of nuclear-spin bath for adaptive feedback with a single-electron spin?qubit (2016)
  • Author(s): Kento Kawasaki,Takashi Nakajima,Akito Noiri,Jun Yoneda,Matthieu R. Delbecq, Peter Stano,Shinichi Amaha,Tomohiro Otsuka,Arne Ludwig, Andreas D. Wieck,and Seigo Tarucha
  • Organizer: 半導体量子効果と量子情報の夏期研修会
• [Presentation] Coherent control of distant spin entanglement in a triple quantum dot (2016)
  • Author(s): Takashi Nakajima,Matthieu R. Delbecq,Tomohiro Otsuka,Shinichi Amaha,Jun Yoneda,Akito Noiri,Kenta Takeda,Giles Allison,Arne Ludwig, Andreas D. Wieck,and Seigo Tarucha
  • Organizer: 半導体量子効果と量子情報の夏期研修会
• [Presentation] Detection and control of charge states of a quintuple quantum dot in a scalable multiple?quantum dot architecture (2016)
  • Author(s): Takumi Ito,Tomohiro Otsuka,Shinichi Amaha,Matthieu R. Delbecq,Takashi Nakajima,Jun Yoneda,Kenta Takeda,Giles Allison,Akito Noiri,Kento Kawasaki,and Seigo Tarucha
  • Organizer: 半導体量子効果と量子情報の夏期研修会
• [Presentation] Measurement of charge states in Si/SiGe multiple quantum dots (2016)
  • Author(s): Tomohiro Otsuka,Kenta Takeda,Jun Yoneda,Takumu Honda,Matthieu R. Delbecq,Giles Allison,Marian Marx,Takashi Nakajima,Tetsuo Kodera, Shunri Oda, Yusuke Hoshi, Noritaka Usami, Kohei M. Itoh and Seigo Tarucha
  • Organizer: 半導体量子効果と量子情報の夏期研修会
• [Presentation] Hybrid cQED architecture as a model system for non-equilibrium physics in condensed?matter (2016)
  • Author(s): Marian Marx, Giles Allison,Matthieu R. Delbecq, Kenta Takeda, Takashi Nakajima,Jun Yoneda,Tomohiro Otsuka,and Seigo Tarucha
  • Organizer: 半導体量子効果と量子情報の夏期研修会
• [Presentation] The property of Rabi oscillations for a single electron spin in a quantum dot (2016)
  • Author(s): Akito Noiri, Takashi Nakajima, Jun Yoneda,Tomohiro Otsuka,Kenta Takeda, Matthieu R. Delbecq, Giles Allison, Kento Kawasaki, Arne Ludwig, Andreas D. Wieck, and Seigo Tarucha
  • Organizer: 半導体量子効果と量子情報の夏期研修会
• [Presentation] Lowering electron temperature to detect spin relaxation in quantum dots coupled to?electron reservoirs (2016)
  • Author(s): Giles Allison,Jun Yoneda,Kenta Takeda,Tomohiro Otsuka,Takashi Nakajima,Matthieu R. Delbecq,Shinich Amaha, Akito Noiri, Takumi Ito,Arne Ludwig, Andreas D. Wieck, and Seigo Tarucha
  • Organizer: 半導体量子効果と量子情報の夏期研修会
• [Presentation] Landau level evolution driven by band hybridization in mirror symmetry broken ABA-stacked trilayer graphene (2016)
  • Author(s): 島崎佑也,山本倫久,樽茶清悟
  • Organizer: 第６回半導体量子効果と量子情報の夏期研修会
• [Presentation] Experimental study on InAs double-nanowire junctions (2016)
  • Author(s): 馬場翔二，鎌田大，松尾貞茂，R.S.Deacon，大岩顕，K.Li，H.Q.Xu，樽茶清悟
  • Organizer: 第６回半導体量子効果と量子情報の夏期研修会
• [Presentation] Interference of singe electrons in depleted channels driven by surface acoustic waves (2016)
  • Author(s): 伊藤諒，高田真太郎，山本倫久，C. Bauerle，A. D. Wieck，樽茶清悟
  • Organizer: 第６回半導体量子効果と量子情報の夏期研修会
• [Presentation] Experimental generation of single photon-electron pairs from single entangled photon pairs (2016)
  • Author(s): 黒山和幸,松尾貞茂,樽茶清悟
  • Organizer: 第６回半導体量子効果と量子情報の夏期研修会
• [Presentation] Electric field control of supercurrent in Al-InAs Josephson junction (2016)
  • Author(s): 松尾貞茂, 上田健人,樽茶清悟
  • Organizer: 第６回半導体量子効果と量子情報の夏期研修会
• [Presentation] Supercurrent in long ballistic Graphene Josephson junctions (2016)
  • Author(s): Ivan V. Borzenets, Michihisa Yamamoto,Seigo Tarucha
  • Organizer: 第６回半導体量子効果と量子情報の夏期研修会
• [Presentation] Experimental study of the coexistence of spin-resolved quantum Hall state and superconductor (2016)
  • Author(s): 上田健人,松尾貞茂,樽茶清悟
  • Organizer: 第６回半導体量子効果と量子情報の夏期研修会
• [Presentation] ミラー対称性の破れたABA積層三層グラフェンにおけるバンド混成に伴うランダウ準位の発展 (2016)
  • Author(s): 島崎佑也, 吉澤徹, Ivan Borzenets, Ke Wang, Xiaomeng Liu, 渡邊賢司, 谷口尚, Philip Kim, 山本倫久, 樽茶清悟
  • Organizer: 日本物理学会2016年秋季大会
• [Presentation] 三重量子ドットにおける準安定電荷状態を利用した電子スピン単発読み出し (2016)
  • Author(s): 中島峻,Matthieu R. Delbecq,大塚朋廣,米田淳,野入亮人,川崎賢人,天羽真一,武田健太,Giles Allison,Arne Ludwig,Andreas Wieck,樽茶清悟
  • Organizer: 日本物理学会2016年秋季大会
• [Presentation] Si/SiGe多重量子ドットの形成と電荷状態測定 (2016)
  • Author(s): 大塚朋廣,武田健太,米田淳,本田拓夢,Matthieu R. Delbecq,Giles Allison,Marian Marx,中島峻,小寺哲夫,小田俊理,星裕介,宇佐美徳隆,伊藤公平,樽茶清悟
  • Organizer: 日本物理学会2016年秋季大会
• [Presentation] 同位体制御されたSi/SiGe量子ドットにおける単一電子スピン共鳴 (2016)
  • Author(s): 米田淳,武田健太,大塚朋廣,中島峻,Matthieu R. Delbecq,Giles Allison,本田拓夢,小寺哲夫,小田俊理,星裕介,宇佐美徳隆,伊藤公平,樽茶清悟
  • Organizer: 日本物理学会2016年秋季大会
• [Presentation] 傾斜磁場中の単一電子スピン共鳴におけるACシュタルク効果 (2016)
  • Author(s): 武田健太,神岡純,米田淳,大塚朋廣,Matthieu R. Delbecq,Giles Allison,中島峻,小寺哲夫,小田俊理,樽茶清悟
  • Organizer: 日本物理学会2016年秋季大会
• [Presentation] 量子ドット中単一電子スピンのラビ振動の特性 (2016)
  • Author(s): 野入亮人,米田淳,中島峻,大塚朋廣,Matthieu R. Delbecq,武田健太,天羽真一,Giles Allison,Arne Ludwig,Andreas D. Wieck,樽茶清悟
  • Organizer: 日本物理学会2016年秋季大会
• [Presentation] 架橋型InAs量子細線におけるバリスティック伝導特性 (2016)
  • Author(s): 鎌田大,松尾貞茂,馬場翔二,R. S. Deacon,K. Li, H. Q. Xu,大岩顕,樽茶清悟
  • Organizer: 日本物理学会
• [Presentation] GaAs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 (2016)
  • Author(s): Marcus Larsson, 黒山和幸, 松尾貞茂, 藤田高史, Sascha R. Valentin, Arne Ludwig, Andreas D. Wieck, 大岩顕, 樽茶清悟
  • Organizer: 日本物理学会2016年秋季大会
• [Presentation] 弾道領域のグラフェンジョセフソン接合における超伝導流 (2016)
  • Author(s): Ivan V. Borzenets, 山本倫久, Fran ois Amet, Chung-Ting Ke, 渡邊賢司, 谷口尚, 樽茶清悟, Gleb Finkelstein
  • Organizer: 日本物理学会2016年秋季大会
• [Presentation] Al-InAs量子井戸ヘテロ構造から作製した超伝導接合の輸送特性 (2016)
  • Author(s): 松尾貞茂, 馬場翔司, 上田健人, 鎌田大, 館野瑞樹, Joon Sue Lee, Borzoyeh Shojaei, Chris Palmstrom, 樽茶清悟
  • Organizer: 日本物理学会2016年秋季大会
• [Presentation] InAsナノワイヤー/Pb三端子接合における量子輸送特性 (2016)
  • Author(s): 馬場翔二, C. Juenger, A. Baumgartner, J. Nygard, C. Shoenenberger, 樽茶清悟
  • Organizer: 日本物理学会2016年秋季大会
• [Presentation] Fast Local Electronic Probes utilizing Quantum Dots?for Fluctuation Measurement in Nanodevices (2016)
  • Author(s): Tomohiro Otsuka, Shinichi Amaha, Takashi Nakajima, Matthieu R. Delbecq, Jun Yoneda, Kenta Takeda, Retsu Sugawara, Arne Ludwig, Andreas D. Wieck, and Seigo Tarucha
  • Organizer: 新学術領域「ゆらぎと構造」第3回領域研究会
• [Presentation] Ternary readout of electron spin states in a quantum dot using spin filtering by quantum Hall edge states (2016)
  • Author(s): H. Kiyama
  • Organizer: Nano Spin Conversion Science Workshop in Kansai for Young Researchers
  • Int'l Joint Research
• [Presentation] Design of bull’s eye structures on gate defined quantum dots (2016)
  • Author(s): R. Fukai, T. Nakagawa, H. Kiyama, and A. Oiwa
  • Organizer: Nano Spin Conversion Science Workshop in Kansai for Young Researchers
  • Int'l Joint Research
• [Presentation] Quantum state conversion from photons to electron spins using heavy hole states (2016)
  • Author(s): T. Nakagawa, R. Fukai, H. Kiyama, and A. Oiwa
  • Organizer: Nano Spin Conversion Science Workshop in Kansai for Young Researchers
  • Int'l Joint Research
• [Presentation] One-Dimensional Quantum Wires with Strong Spin-Orbit Interaction Using InSb Quantum Wells (2016)
  • Author(s): M. Tada, H. Kiyama, K. Akahane, and A. Oiwa
  • Organizer: Nano Spin Conversion Science Workshop in Kansai for Young Researchers
  • Int'l Joint Research
• [Presentation] 横型量子ドット上のブルアイ構造の設計 (2016)
  • Author(s): 深井利央，中川智裕，木山治樹，大岩顕
  • Organizer: 日本物理学会 2016年秋季大会
• [Presentation] InSb低次元系における電気伝導 (2016)
  • Author(s): 多田誠樹, 大岩顕, 木山治樹, 赤羽浩一
  • Organizer: 日本物理学会 2016年秋季大会
• [Presentation] Design of bull’s eye structures a on gate-defined lateral quantum dots (2016)
  • Author(s): R. Fukai, T. Nakagawa, H. Kiyama and A. Oiwa
  • Organizer: 9th International Conference on Physics and Applications of Spin-Related Phenomena in Solids (PASPS9)
  • Int'l Joint Research
• [Presentation] Single-electron charge sensing in InAs self-assembled quantum dots (2016)
  • Author(s): H. Kiyama, T. Hirayama, R. Shikishima, S. Matsuo, S. Baba, N. Nagai, K. Hirakawa, S. Tarucha, and A. Oiwa
  • Organizer: 9th International Conference on Physics and Applications of Spin-Related Phenomena in Solids (PASPS9)
• [Presentation] Efficient control over wavefunctions of electrons in self-assembled InAs quantum dots using side-gating (2016)
  • Author(s): R. Shikishima, H. Kiyama, S. Baba, T. Hirayama, N. Nagai, K. Hirakawa, S. Tarucha, and A. Oiwa
  • Organizer: Frontiers in Quantum Materials and Devices Workshop (FQMD2016)
  • Int'l Joint Research
• [Presentation] Single-shot Readout of Three Two-electron Spin States in a Quantum Dot Coupled to Quantum Hall Edge States (2016)
  • Author(s): H. Kiyama, T. Nakajima, S. Teraoka, A. Oiwa, and S. Tarucha
  • Organizer: Frontiers in Quantum Materials and Devices Workshop (FQMD2016)
  • Int'l Joint Research
• [Presentation] Quantum Photon-spin Interface Consisting of Gate-defined Quantum Dots and Surface Plasmon Structure (2016)
  • Author(s): Rio Fukai, Haruki Kiyama, Tomohiro Nakagawa, and Akira Oiwa
  • Organizer: 2016 Workshop on Innovative Nanoscale Devices and Systems (WINDS)
  • Int'l Joint Research
• [Presentation] Design of Bull’s Eye Structures on Gate-defined Lateral Quantum Dots (2016)
  • Author(s): Rio Fukai, Tomohiro Nakagawa, Haruki Kiyama and Akira Oiwa
  • Organizer: 20th SANKEN International Symposium
  • Int'l Joint Research
• [Presentation] Magnetotransport in narrow gap semiconductor InSb Quantum Wells (2016)
  • Author(s): Masaki Tada, Haruki Kiyama, Kouichi Akahane, and Akira Oiwa
  • Organizer: 20th SANKEN International Symposium
  • Int'l Joint Research
• [Presentation] Coherent conversion from photons to electron spins using quantum dots (2016)
  • Author(s): A. Oiwa
  • Organizer: China-Japan Inetrnational Workshop on Quantum Technologies (QTech2016)
  • Int'l Joint Research / Invited
• [Presentation] Conversion from single photons to single electron spins in gate-defined quantum dots (2016)
  • Author(s): A. Oiwa
  • Organizer: 31th International Conference on Physics of Semiconductors (ICPS2016)
  • Int'l Joint Research / Invited
• [Presentation] Photon-spin Quantum Interface for Quantum Communications Using Artificial Molecules (2016)
  • Author(s): Akira Oiwa
  • Organizer: 20th SANKEN International Symposium
  • Int'l Joint Research / Invited
• [Presentation] 電気制御量子ドットを使った光子－電子スピンポアンカレインターフェース (2016)
  • Author(s): 大岩顕
  • Organizer: 第21回スピン工学の基礎と応用（PASPS-21）
  • Invited
• [Presentation] Conversion from single photon polarizations to single electron spins using gate-defined GaAs double quantum dots (2016)
  • Author(s): A. Oiwa
  • Organizer: 1st International Conference on Topological orders, quantum information, and emergent spacetime on quantum simulator
  • Int'l Joint Research / Invited
• [Presentation] Valley Hall Effect in Bilayer Graphene with Electrically Broken Inversion Symmetry (2016)
  • Author(s): Y. Shimazaki
  • Organizer: 2016 International Conference on Solid State Devices and Materials (SSDM)
  • Int'l Joint Research / Invited
• [Presentation] Graphene-based valleytronics and superconductor devices (2016)
  • Author(s): M. Yamamoto
  • Organizer: The 8th Conferences on Recent Progress in Graphene and Two-dimensional Materials Research (RPGR2016)
  • Int'l Joint Research / Invited
• [Presentation] Graphene-based valleytronics and the Cooper pair splitter (2016)
  • Author(s): M. Yamamoto
  • Organizer: QTech2016
  • Int'l Joint Research / Invited
• [Presentation] グラフェンにおけるトポロジカルバレー流 (2016)
  • Author(s): 山本倫久
  • Organizer: 第２回「トポロジーが紡ぐ物質科学のフロンティア」領域研究会
  • Invited
• [Remarks] 大阪大学産業科学研究所 量子システム創成研究分野（大岩研究室）
  • URL: http://www.sanken.osaka-u.ac.jp/labs/qse/
• [Remarks] 天然シリコンにおける高性能量子ビット実装 －既存の半導体技術による量子コンピュータ集積化の実現へ－
  • URL: http://www.riken.jp/pr/press/2016/20160822_1/
• [Remarks] 電子2個のスピン情報の多値読み出しに成功
  • URL: http://resou.osaka-u.ac.jp/ja/research/2016/20161125_1
• [Remarks] 理化学研究所 創発物性科学研究センター
  • URL: http://www.cems.riken.jp/jp/laboratory/qfsrg
• [Remarks] 樽茶研究室
  • URL: http://www.meso.t.u-tokyo.ac.jp/index.html
• [Funded Workshop] The 2nd International Symposium on Dynamics in Artificial Quantum Systems (DAQS) (2018)
• [Funded Workshop] Japan-China International Workshop on Quantum Technologies (QTech2017) (2017)
• [Funded Workshop] 5th Workshop on Physics between Ecole Normale Superieure and University of Tokyo (2017)