Quaternionic Berry connection by the Kramers multiplet and physical applications

• Project/Area Number: 23654128
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Mathematical physics/Fundamental condensed matter physics
• Research Institution: University of Tsukuba
• Principal Investigator: HATSUGAI Yasuhiro 筑波大学, 数理物質系, 教授 (80218495)
• Project Period (FY): 2011 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000); Fiscal Year 2012: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000); Fiscal Year 2011: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
• Keywords: 時間反転対称性 / 四元数 / 幾何学的位相 / ベリー位相 / トポロジカル秩序 / クラマース縮退 / ベリー接続 / エッジ状態 / トポロジカル秩序変数 / トポロジカル絶縁体 / 量子液体

Research Abstract

Recently a theory of the Berry connection of the Kramers multiplet with the time-reversal symmetry is formulated by Hatsugai. The present project is to develop this embryonic research area and to pursue the use of quaternionic Berry connections to define topological order parameters. The basic idea is applied for pyrochlore/Kagome lattice systems with Sp(1) gauge symmetry as a series of models in any dimensions. Further their topological characters are clarified.

Research Products

• [Journal Article] Chiral symmetry and its manifestation in optical responses in graphene : interaction and multi-layers (2013)
  • Author(s): Yasuhiro Hatsugai, Takahiro Morimoto, Tohru Kawarabayashi, and Hideo Aoki
  • Journal Title: New J. Phys Volume: 15 Issue: 3 Pages: 35023-35023
  • DOI: 10.1088/1367-2630/15/3/035023
  • Peer Reviewed / Open Access
• [Journal Article] トポロジカル秩序とベリー接続 (2013)
  • Author(s): 初貝安弘
  • Journal Title: 日本物理学会誌「解説」 Volume: 68
  • Peer Reviewed
• [Journal Article] Influence of Coulomb Blockade on Wave Packet Dynamics in Nanoscale Structures (2013)
  • Author(s): T. Shiokawa1, G. Fujita, Y. Takada, S. Konabe, M. Muraguchi, T. Yamamoto, T. Endoh, Y. Hatsugai, and K. Shiraishii (T. Shiokawa)
  • Journal Title: Jpn. J. Appl. Phys. Volume: 52 Issue: 4S Pages: 04CJ06-04CJ06
  • DOI: 10.7567/jjap.52.04cj06
  • NAID: 210000142088
  • Peer Reviewed
• [Journal Article] トポロジカル秩序とベリー接続 (2013)
  • Author(s): 初貝安弘（初貝安弘）
  • Journal Title: 日本物理学会会誌「解説」 Volume: 68巻1月号 Pages: 19-28
  • Peer Reviewed
• [Journal Article] Chiral Symmetry and Many-Body Effect in Multilayer Graphene (2013)
  • Author(s): Yuji Hamamoto, Tohru Kawarabayashi, Hideo Aoki, Yasuhiro Hatsugai（Yuji Hamamoto）
  • Journal Title: proceeding of the 20th International Conference on High Magnetic Fields in Semiconductor Physics (HMF-20) Volume: 出版予定
  • Peer Reviewed
• [Journal Article] Chiral condensate with topological degeneracy in graphene and its manifestation in edge states (2012)
  • Author(s): Y. Hamamoto, H. Aoki, and Y. Hatsugai
  • Journal Title: Phys. Rev Volume: 86
  • NAID: 120007137145
  • Peer Reviewed
• [Journal Article] Chiral condensate with topological degeneracy in graphene and its manifestation in edge states (2012)
  • Author(s): Y. Hamamoto, H. Aoki, and Y. Hatsugai
  • Journal Title: Phys. Rev. B Volume: 86 Issue: 20
  • DOI: 10.1103/physrevb.86.205424
  • NAID: 120007137145
  • Peer Reviewed
• [Journal Article] Generalization of chiral symmetry for tilted Dirac cones (2012)
  • Author(s): Tohru Kawarabayashi, Yasuhiro Hatsugai, Takahiro Morimoto, and Hideo Aoki
  • Journal Title: International Journal of Modern Physics : Conference series Volume: 11 Pages: 145-150
  • DOI: 10.1142/s2010194512006046
  • Peer Reviewed
• [Journal Article] Topologically protected Landau levels in bilayer graphene in finite electric fields (2012)
  • Author(s): Tohru Kawarabayashi, Yasuhiro Hatsugai, Hideo Aoki
  • Journal Title: Phys.Rev.B Volume: 85 Issue: 16 Pages: 165410-165410
  • DOI: 10.1103/physrevb.85.165410
  • Peer Reviewed
• [Journal Article] Generalization of chiral symmetry for tilted Dirac cones (2012)
  • Author(s): T. Kawarabayashi, Y. Hatsugai, T. Morimoto and H. Aoki
  • Journal Title: Int. J. Mod. Phys. : Conf. Ser. Volume: 出版予定
  • Peer Reviewed
• [Journal Article] Z_Q Topological Invariants for Polyacetylene, Kagome and Pyrochlore lattices (2011)
  • Author(s): Y.Hatsugai, I.Maruyama
  • Journal Title: Euro Phys Letter Volume: 95 Issue: 2 Pages: 20003-20003
  • DOI: 10.1209/0295-5075/95/20003
  • Peer Reviewed
• [Journal Article] Z_2 topological number of local quantum clusters in the orthogonal dimer model (2011)
  • Author(s): I.Maruyama, S.Tanaya, M.Arikawa, Y.Hatsugai
  • Journal Title: J.Phys. : Conf.Ser. Volume: 320 Pages: 012019-012019
  • DOI: 10.1088/1742-6596/320/1/012019
  • Peer Reviewed
• [Journal Article] Manipulation of the Dirac cones and the anomaly in the graphene related quantum Hall effect (2011)
  • Author(s): H.Watanabe, Y Hatsugai, H Aoki
  • Journal Title: J.Phys. : Conf.Ser. Volume: 334 Pages: 012044-012044
  • DOI: 10.1088/1742-6596/334/1/012044
  • Peer Reviewed
• [Journal Article] Edge states in graphene quantum Hall system with bond vs potential disorder (2011)
  • Author(s): M.Arikawa, H.Aoki, Y.Hatsugai
  • Journal Title: J.Phys. : Conf.Ser. Volume: 334 Pages: 012043-012043
  • DOI: 10.1088/1742-6596/334/1/012043
  • Peer Reviewed
• [Journal Article] Numerical study of electronic structure under uniform magnetic field and quantized Hall conductance for multi-band tight-binding models (2011)
  • Author(s): M.Arai, Y.Hatsugai
  • Journal Title: J.Phys. : Conf.Ser. Volume: 334 Pages: 12042-12042
  • DOI: 10.1088/1742-6596/334/1/012042
  • Peer Reviewed
• [Journal Article] Wave packet dynamics in the spin torque transfer (2011)
  • Author(s): M.Arikawa, Y.Hatsugai, T.Endoh, K.Shiraishi
  • Journal Title: J.Phys.Soc.Jpn. Volume: 81 Issue: 4 Pages: 044706-044706
  • DOI: 10.1143/jpsj.81.044706
  • NAID: 40019224343
  • Peer Reviewed
• [Journal Article] Topological aspect of graphene physics (2011)
  • Author(s): Y.Hatsugai
  • Journal Title: J.Phys. : Conf.Ser. Volume: 334(Invited) Pages: 012004-012004
  • DOI: 10.1088/1742-6596/334/1/012004
  • Peer Reviewed
• [Presentation] Characterization of Topological Phases (2013)
  • Author(s): Y. Hatsugai
  • Organizer: Special lecture at MANA
  • Place of Presentation: Tsukuba, JAPAN(招待講演)
  • Year and Date: 2013-03-06
• [Presentation] Topological phases and bulk-edge correspondence (2013)
  • Author(s): Y. Hatsugai
  • Organizer: The 317th MANA Special Seminar
  • Place of Presentation: Tsukuba, JAPAN.(招待講演)
  • Year and Date: 2013-03-06
• [Presentation] Symmetry and order parameters for topological phases (2013)
  • Author(s): Y. Hatsugai
  • Organizer: Seminar at M. Ueda Group, Univ. Tokyo
  • Place of Presentation: Tokyo, JAPAN(招待講演)
  • Year and Date: 2013-01-24
• [Presentation] Symmetry protection in topological phases (2013)
  • Author(s): Y. Hatsugai
  • Organizer: 2013 EMN West Meeting on Topological Insulators
  • Place of Presentation: Houston, U.S.A.
  • Year and Date: 2013-01-08
• [Presentation] Fun of graphene for physicists (2012)
  • Author(s): Y. Hatsugai
  • Organizer: 4-th Tsukuba-Hsinchu Joint symposium on Interdisciplinary Nano-Science an Technology
  • Place of Presentation: Tsukuba, JAPAN.
  • Year and Date: 2012-12-18
• [Presentation] ベリー接続とエンタングルメント (2012)
  • Author(s): 初貝 安弘
  • Organizer: 日本物理学会2012年秋季大会
  • Place of Presentation: 横浜国立大学,横浜
  • Year and Date: 2012-09-19
• [Presentation] Berry connection and bulk-edge correspondence in topological phases (2012)
  • Author(s): Y. Hatsugai
  • Organizer: 36-th International conference of theoretical physics:correlation and coherence at different scales
  • Place of Presentation: Ustron, Poland
  • Year and Date: 2012-09-15
• [Presentation] Chiral symmetry and topology in graphene (2012)
  • Author(s): Y. Hatsugai
  • Place of Presentation: NIMS, Tsukuba, JAPAN
  • Year and Date: 2012-08-29
• [Presentation] バルクエッジ対応の物理 (2012)
  • Author(s): 初貝 安弘
  • Organizer: 広島大学大学院集中講義
  • Place of Presentation: 広島大学
  • Year and Date: 2012-06-27
• [Presentation] Bulk-Edge Correspondence in Condensed Matter and Its Application (2012)
  • Author(s): Y. Hatsugai
  • Organizer: 2012 Villa Conference on Topological Insulators
  • Place of Presentation: Orlando, U.S.A..
  • Year and Date: 2012-04-19
• [Presentation] Fun of graphene for physicists (2012)
  • Author(s): Y. Hatsugai (Y. Hatsugai）
  • Organizer: 4-th Tsukuba-Hsinchu Joint symposium on Interdisciplinary Nano-Science an Technology
  • Place of Presentation: Tsukuba, JAPAN
  • Invited
• [Presentation] Short-range entangled 系におけるZQ量子化ベリー位相の応用 (2012)
  • Author(s): 初貝安弘, 丸山勲
  • Organizer: 日本物理学会2012年年会
  • Place of Presentation: 関西学院大学（神戸）
• [Presentation] 電子間相互作用による磁場下グラフェンの局在状態 (2012)
  • Author(s): 濱本雄治, 青木秀夫, 初貝安弘
  • Organizer: 日本物理学会2012年年会
  • Place of Presentation: 関西学院大学（神戸）
• [Presentation] 2次元パイロクロア格子におけるクロスダイマー相と量子化ベリー位相 (2012)
  • Author(s): 棚谷翔, 丸山勲, 初貝安弘
  • Organizer: 日本物理学会2012年年会
  • Place of Presentation: 関西学院大学（神戸）
• [Presentation] 電場中の2層グラフェンにおけるゼロエネルギーランダウ準位の トポロジカルな安定性 (2012)
  • Author(s): 河原林透, 初貝安弘, 青木秀夫
  • Organizer: 日本物理学会2012年年会
  • Place of Presentation: 関西学院大学（神戸）
• [Presentation] フェルミオン・ダブリングを伴わないディラック電子のランダウ準位に対するランダムネスの効果 (2012)
  • Author(s): 本田貴大，初貝安弘，青木秀夫，河原林透
  • Organizer: 日本物理学会2012年年会
  • Place of Presentation: 関西学院大学（神戸）
• [Presentation] 半導体ナノ構造における多電子波束ダイナミクスの印加電圧依存性 (2012)
  • Author(s): 塩川太郎, 高田幸宏, 尹永択, 岩田潤一, 小鍋哲, 有川晃弘, 村口正和, 遠藤哲郎, 初貝安弘, 白石賢二
  • Organizer: 日本物理学会2012年年会
  • Place of Presentation: 関西学院大学（神戸）
• [Presentation] Symmetry, Dirac cones and Berry connections for frustrated fermions (2011)
  • Author(s): Y. Hatsugai
  • Organizer: 26th Nishinomiya-Yukawa Memorial International Workshop"Novel Quantum States in Condensed Matter 2011(NQS2011)
  • Place of Presentation: 京都大学 基礎物理学研究所, 京都市
  • Year and Date: 2011-11-17
• [Presentation] Quantized Berry phases for characterization of short range entangled states in d-dimensions (2011)
  • Author(s): Y. Hatsugai
  • Organizer: Kavli Institute for Theoretical Physics program : TopologicalInsulators and Superconductors(招待講演)
  • Place of Presentation: KITP-UCSB, Santa Barbara, U.S.A.
  • Year and Date: 2011-11-03
• [Presentation] グラフェンにおけるカイラル対称性と電子相関 (2011)
  • Author(s): 初貝 安弘
  • Organizer: 日本物理学会 2011年秋季大会
  • Place of Presentation: 弘前大学, 弘前市
  • Year and Date: 2011-09-18
• [Presentation] グラフェンの特異な物性とカイラル対称性 (2011)
  • Author(s): 初貝 安弘
  • Organizer: 京都大学基礎物理学研究所 研究会「熱場の量子論とその応用」
  • Place of Presentation: 京都大学 基礎物理学研究所、京都市
  • Year and Date: 2011-08-22
• [Presentation] 時間反転対称性とトポロジカル絶縁体のエッジ状態:バルクエッジ対応の物理 (2011)
  • Author(s): 初貝 安弘
  • Organizer: 平成23年度 第10回 飯綱・サイエンスサマー道場
  • Place of Presentation: ホテルアルカディア 飯綱高原、長野(招待講演)
  • Year and Date: 2011-08-17
• [Presentation] Use of Berry connections in condensed matter physics and the bulk-edge correspondence (2011)
  • Author(s): Y. Hatsugai
  • Organizer: Workshop on Emergence in Field Theory
  • Place of Presentation: Nanyang Executive center, Nanyang Technology University, Singapore.
  • Year and Date: 2011-08-06
• [Presentation] Symmetry protected quantization of Berry phases and applications (2011)
  • Author(s): Y. Hatsugai
  • Organizer: Workshop and School on Topological Aspects of CondensedMatter Physics(招待講演)
  • Place of Presentation: International Center for Theoretical Physics (ICTP) Trieste, Italy.
  • Year and Date: 2011-06-29
• [Presentation] Symmetry, Dirac cones and Berry connections for frustrated fermions (2011)
  • Author(s): Y. Hatsugai
  • Organizer: 26th Nishinomiya-Yukawa Memorial International Workshop "Novel Quantum States in Condensed Matter 2011 (NQS2011)"(招待講演)
  • Place of Presentation: 京都大学 基礎物理学研究所 （京都）
• [Presentation] グラフェンにおけるカイラル対称性と電子相関 (2011)
  • Author(s): 初貝安弘
  • Organizer: 理論核領域, 素粒子領域合同シンポジウム 強相関物理の新展開18pSJ-6 日本物理学会 2011年秋季大会（素粒子原子核)(招待講演)
  • Place of Presentation: 弘前大学, 弘前市
• [Presentation] Quantized Berry phases for characterization of short range entangled states in d-dimensions (2011)
  • Author(s): Y. Hatsugai
  • Organizer: Kavli Institute for Theoretical Physics program : Topological Insulators and Superconductors(招待講演)
  • Place of Presentation: KITP-UCSB, Santa Barbara, USA
• [Presentation] 対称性が保護するベリー位相の量子化とその電子系での応用 (2011)
  • Author(s): 初貝安弘，丸山勲
  • Organizer: 日本物理学会 2011年秋季大会（物性）
  • Place of Presentation: 富山大学、富山市
• [Presentation] 傾いたディラックコーンにおけるゼロモードのトポロジカルな安定性 --- カイラル対称性の非エルミートな一般化 --- (2011)
  • Author(s): 河原林透，初貝安弘，森本高裕，青木秀夫
  • Organizer: 日本物理学会 2011年秋季大会（物性）
  • Place of Presentation: 富山大学、富山市
• [Presentation] 磁場中グラフェンのカイラル対称性と多体状態の数値的研究 (2011)
  • Author(s): 濱本雄治，青木秀夫,初貝安弘
  • Organizer: 日本物理学会 2011年秋季大会（物性）
  • Place of Presentation: 富山大学、富山市
• [Presentation] 半導体中での波束ダイナミクスの印加電圧依存性 (2011)
  • Author(s): 高田幸宏，尹永択，塩川太郎，岩田潤一，小鍋哲，有川晃弘，村口正和，遠藤哲郎，初貝安弘，白石賢二
  • Organizer: 日本物理学会 2011年秋季大会（物性）
  • Place of Presentation: 富山大学、富山市
• [Presentation] ハートリーフォック近似によるナノ構造中の電子波束ダイナミックス (2011)
  • Author(s): 高田幸宏，尹永択，塩川太郎，岩田潤一，小鍋哲，有川晃弘，村口正和，遠藤哲郎，初貝安弘，白石賢二
  • Organizer: 日本物理学会 2011年秋季大会（物性）
  • Place of Presentation: 富山大学、富山市
• [Presentation] Suzuki-Trotter法による電子波束ダイナミックスの多体効果 (2011)
  • Author(s): 尹永択，塩川太郎，高田幸宏，岩田潤一，小鍋哲，有川晃弘，村口正和，遠藤哲郎，初貝安弘，白石賢二
  • Organizer: 日本物理学会 2011年秋季大会（物性）
  • Place of Presentation: 富山大学、富山市
• [Presentation] 二次元パイロクロア格子上のS=1/2 ハイゼンベルグ模型の基底状態とZ2 ベリー位相を用いた相分類 (2011)
  • Author(s): 棚谷翔, 丸山勲, 有川晃弘, 初貝安弘
  • Organizer: ポリスケール大学間連携研究会
  • Place of Presentation: 東京理科大学長万部キャンパス, 長万部町
• [Presentation] グラフェンの特異な物性とカイラル対称性 (2011)
  • Author(s): 初貝安弘
  • Organizer: 京都大学基礎物理学研究所 研究会「熱場の量子論とその応用」(招待講演)
  • Place of Presentation: 京都大学 基礎物理学研究所、京都
• [Presentation] 時間反転対称性とトポロジカル絶縁体のエッジ状態：バルクエッジ対応の物理 (2011)
  • Author(s): 初貝安弘
  • Organizer: 平成23年度 第10回 飯綱・サイエンスサマー道場(招待講演)
  • Place of Presentation: ホテルアルカディア 飯綱高原、長野
• [Presentation] Use of Berry connections in condensed matter physics and the bulk-edge correspondence (2011)
  • Author(s): Y. Hatsugai
  • Organizer: Workshop on Emergence in Field Theory(招待講演)
  • Place of Presentation: Nanyang Executive center, Nanyang Technology University, Singapore
• [Presentation] Chiral Symmetry and Electron-Electron Interaction in Many-Body Gap Formation in Graphene (2011)
  • Author(s): Y. Hamamoto, Y. Hatsugai, and H. Aoki
  • Organizer: 26th International Conference on Low Temperature Physics (LT26)
  • Place of Presentation: The Beijing International Convention Center, China
• [Presentation] Exact ground states of ν=1/2 states in graphene (2011)
  • Author(s): Y. Hamamoto, Y. Hatsugai, H. Aoki
  • Organizer: The 19th international conference on Electronic Properties of Two-Dimensional Systems (EP2DS19)
  • Place of Presentation: Florida State University Conference Center, USA
• [Presentation] Symmetry protected quantization of Berry phases and applications (2011)
  • Author(s): Y. Hatsugai
  • Organizer: Workshop and School on Topological Aspects of Condensed Matter Physics(招待講演)
  • Place of Presentation: International Center for Theoretical Physics (ICTP) Trieste, Italy
• [Presentation] Robustness of zero-modes and generalised chiral symmetry for tilted Dirac cones with disorder (2011)
  • Author(s): T. Kawarabayashi, Y. Hatsugai, T. Morimoto, H. Aoki
  • Organizer: Graphene Week 2011: Fundamental Science of Graphene and Applications of Graphene-Based Devices (Selected oral presentation)
  • Place of Presentation: Obergurgl, Austria
• [Presentation] Electron correlation and chiral symmetry in half-filled graphene in magnetic fields (2011)
  • Author(s): Y. Hamamoto, Y. Hatsugai, H. Aoki
  • Organizer: Graphene Week 2011: Fundamental Science of Graphene and Applications of Graphene-Based Devices
  • Place of Presentation: Obergurgl, Austria
• [Presentation] Twisted Bilayer Grapheneのチャーン数
  • Author(s): 鷲見理沙，濱本雄治，初貝安弘 (初貝安弘)
  • Organizer: 日本物理学会第６８回年会
  • Place of Presentation: 広島大学
• [Presentation] Semiclassical Klein Tunneling with Berry phase corrections in Graphene
  • Author(s): Christoph Minol Puetter，Satoru Konabe，Yasuhiro Hatsugai，Kenji Shiraishi (Kenji Shiraishi)
  • Organizer: 68-th JPS Annual Meeting
  • Place of Presentation: Hiroshima Univ.
• [Presentation] ケクレ型ボンド秩序があるグラフェンのn=0ランダウ準位の乱れに対する安定性
  • Author(s): 河原林透，初貝安弘，青木秀夫 （河原林透）
  • Organizer: 日本物理学会第６８回年会
  • Place of Presentation: 広島大学
• [Presentation] Characterization of Topological Phases
  • Author(s): Y. Hatsugai (Y. Hatsugai）
  • Organizer: Special lecture at MANA
  • Place of Presentation: NIMS, Tsukuba, JAPAN
  • Invited
• [Presentation] Topological phases and bulk-edge correspondence
  • Author(s): Y. Hatsugai (Y. Hatsugai）
  • Organizer: The 317th MANA Special Seminar
  • Place of Presentation: NIMS, Tsukuba, JAPAN
  • Invited
• [Presentation] Symmetry and order parameters for topological phases
  • Author(s): Y. Hatsugai (Y. Hatsugai）
  • Organizer: Seminar at M. Ueda Group, Univ. Tokyo
  • Place of Presentation: Tokyo, JAPAN
  • Invited
• [Presentation] Symmetry protection in topological phases
  • Author(s): Y. Hatsugai (Y. Hatsugai）
  • Organizer: 2013 EMN West Meeting on Topological Insulators
  • Place of Presentation: Houston, USA
  • Invited
• [Presentation] Electronic structure of twisted bilayer graphene
  • Author(s): Risa Sumi, Yuji Hamamoto, and Yasuhiro Hatsugai (Y. Hatsugai）
  • Organizer: 4-th Tsukuba-Hsinchu Joint symposium on Interdisciplinary Nano-Science an Technology
  • Place of Presentation: Tsukuba, JAPAN
• [Presentation] Edge states of graphene and silicene ribbons using a multi-orbital tight-binding model
  • Author(s): Sho Tanaya, Yuji Hamamoto, Satoru Konabe, Kenji Shiraishi, and Yasuhiro Hatsugai (Y. Hatsugai）
  • Organizer: 4-th Tsukuba-Hsinchu Joint symposium on Interdisciplinary Nano-Science an Technology
  • Place of Presentation: Tsukuba, JAPAN
• [Presentation] Semiclassical Klein Tunneling with Berry Phase Corrections in Graphene
  • Author(s): Christoph M. Puetter, Satoru Konabe, Yasuhiro Hatsugai and Kenji Shiraishi (K. Shiraishi)
  • Organizer: 2012 Workshop on Innovative Nanoscale Devices and Systems (WINDS12)
  • Place of Presentation: Hapuna Beach Prince Hotel, Kohala Coast, Hawaii, USA
• [Presentation] ベリー接続とエンタングルメント
  • Author(s): 初貝安弘 （初貝安弘）
  • Organizer: 日本物理学会2012年秋季大会 （領域11，領域01合同）シンポジウム量子多体系におけるエンタングルメント
  • Place of Presentation: 横浜国立大学，横浜
  • Invited
• [Presentation] Explicit charge-fulx duality in some 3D topological phases
  • Author(s): Y. Hatsugai, Y. Avishai (Y. Hatsugai）
  • Organizer: 日本物理学会2012年秋季大会
  • Place of Presentation: 横浜国立大学，横浜
• [Presentation] 周期系における軌道磁化
  • Author(s): 新井正男，初貝安弘（新井正男）
  • Organizer: 日本物理学会2012年秋季大会
  • Place of Presentation: 横浜国立大学，横浜
• [Presentation] 磁場中二層グラフェンの多体効果とエッジ状態
  • Author(s): 濱本雄治，河原林透，青木秀夫，初貝安弘 (初貝安弘）
  • Organizer: 日本物理学会2012年秋季大会
  • Place of Presentation: 横浜国立大学，横浜
• [Presentation] 磁場中の2層グラフェンにおけるゼロモードのトポロジカルな安定性 --- trigonal warping の効果 ---
  • Author(s): 河原林透，初貝安弘，青木秀夫 (河原林透）
  • Organizer: 日本物理学会2012年秋季大会
  • Place of Presentation: 横浜国立大学，横浜
• [Presentation] Berry connection and bulk-edge correspondence in topological phases
  • Author(s): Y. Hatsugai (Y. Hatsugai）
  • Organizer: 36-th International conference of theoretical physics: correlation and coherence at different scales
  • Place of Presentation: Ustron, Poland
  • Invited
• [Presentation] Chiral symmetry and topology in graphene
  • Author(s): Y. Hatsugai (Y. Hatsugai）
  • Organizer: Topology in physics and material science
  • Place of Presentation: NIMS, Tsukuba
  • Invited
• [Presentation] Chiral Symmetry and Fermion Doubling in the Zero-mode Landau Levels of Massless Dirac Fermions with Disorder
  • Author(s): T. Kawarabayashi, T. Honda, H. Aoki, and Y. Hatsugai (T. Kawarabayashi)
  • Organizer: ICPS 2012-31st International Conference on the Physics of Semiconductors
  • Place of Presentation: Zurich, Switzerland
• [Presentation] Stability of zero-mode Landau levels in bilayer graphene against disorder : role of the chiral symmetry
  • Author(s): T. Kawarabayashi, Y. Hatsugai, H. Aoki (T. Kawarabayashi)
  • Organizer: The 20th International Conference on "High Magnetic Fields in Semiconductor Physics, HMF-20
  • Place of Presentation: Chamonix Mont-Blanc, France
• [Presentation] Chiral symmetry and many-body effect in multi layer grapheme
  • Author(s): Y. Hamamoto, T. Kawarabayashi, H. Aoki, and Y. Hatsugai (Y. Hatsugai）
  • Organizer: The 20th International Conference on "High Magnetic Fields in Semiconductor Physics, HMF-20
  • Place of Presentation: Chamonix Mont-Blanc, France
• [Presentation] バルクエッジ対応の物理
  • Author(s): 初貝安弘 （初貝安弘）
  • Organizer: 広島大学大学院集中講義
  • Place of Presentation: 広島大学
• [Presentation] Chiral Symmetry and Robustness of Zero-mode Landau Levels in Bilayer Graphene
  • Author(s): T. Kawarabayashi, Y. Hatsugai, H. Aoki (T.Kawarabayashi)
  • Organizer: DELFT UNIVERSITY OF TECHNOLOGY, Netherland
  • Place of Presentation: DELFT UNIVERSITY OF TECHNOLOGY, Netherland
• [Presentation] Many-body problem in graphene quantum Hall systems from a perspective of chiral symmetry
  • Author(s): Y. Hamamoto, H. Aoki, Y. Hatsugai (Y. Hatsugai）
  • Organizer: The eighth international nanotechnology conference on communication and cooperation
  • Place of Presentation: AIST, Tsukuba, JAPAN
• [Presentation] Bulk-Edge Correspondence in Condensed Matter and Its Application
  • Author(s): Y. Hatsugai (Y. Hatsugai）
  • Organizer: 2012 Villa Conference on Topological Insulators (VCTI 2012) http://emnc.org/vcti
  • Place of Presentation: Orlando, USA
  • Invited
• [Remarks]
  • URL: http://rhodia.ph.tsukuba.ac.jp/~hatsugai
• [Remarks]
  • URL: http://rhodia.ph.tsukuba.ac.jp/~hatsugai/modules/pico/?ml_lang=en
• [Remarks] 物性物理学/物性理論 初貝研究室/筑波大学 研究
  • URL: http://rhodia.ph.tsukuba.ac.jp/~hatsugai/modules/pico/index.php?cat_id=1
• [Remarks]
  • URL: http://rhodia.ph.tsukuba.ac.jp/~hatsugai