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OKUNISHI Kouichi  奥西 巧一

ORCIDConnect your ORCID iD *help
… Alternative Names

奥西 功一  オクニシ コウイチ

奥西 巧一  オクニシ コウイチ

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Researcher Number 30332646
Other IDs
External Links
Affiliation (Current) 2022: 新潟大学, 自然科学系, 准教授
Affiliation (based on the past Project Information) *help 2010 – 2022: 新潟大学, 自然科学系, 准教授
2006 – 2009: 新潟大学, 自然科学系, 助教
2007: Niigata University, 理学部, Assistant Professor
2005 – 2006: Niigaka University, Department of Physics, Assistant, 自然科学系, 助手
2004: 新潟大学, 理学部, 助手
2002: 新潟大学, 理学部, 助手
Review Section/Research Field
Principal Investigator
Mathematical physics/Fundamental condensed matter physics / Science and Engineering / Transformative Research Areas, Section (II)
Except Principal Investigator
Condensed matter physics II / Science education / Science and Engineering / Mathematical physics/Fundamental condensed matter physics / Transformative Research Areas, Section (II)
Keywords
Principal Investigator
くりこみ群 / エンタングルメント / 密度行列 / 状態密度 / カイラリティー / 数値くりこみ群 / 共形場理論 / テンソルネットワーク / 磁場誘起秩序 / 密度行列くりこみ群 … More / 非整合秩序 / スピンチューブ / 量子スピン / フラストレーション / 磁化過程 / corner Hamiltonian / カットオフ / 強磁場 / 磁場誘起非整合秩序 / モンテカルロシミュレーション / 密度行列くり込み群 / スピン / 擬一次元 / テンソル積 / テンソル積状態 / 非局所変換 / 量子モンテカルロ / 量子エンタングルメント / 負符号問題 / 縮約密度行列 / 変形問題 / 角転送行列 / 量子多体系 / ランダムシングレット / ランダムスピン系 / ウンルー効果 / サイン2乗変形 / 物性基礎論 / 計算物理 / 量子多体ダイナミクス / 数理構造 / 量子多体問題 / 量子ダイナミクス / 量子計算 / 厳密解析 / 数値シミュレーション … More
Except Principal Investigator
量子相転移 / 量子スピン系 / フラストレーション / 超伝導 / スピンギャップ / スピンナノチューブ / 計算物理 / 並列計算 / コバルト酸化物 / 電荷秩序 / 軌道秩序 / 金属絶縁体転移 / d-p模型 / 電子相関 / ナノチューブ / カイラリティ / スピン液体 / 低次元系 / ナノ磁性体 / quantum phase transition / テンソルネットワーク / 国際共同講義 / デルフト工科大学 / インターネット / PCクラスター / 経路積分 / 電子状態計算 / 反強磁性 / 軌道自由度 / 強磁性 / 磁性 / ナノ磁性 / スピンギヤツプ / 量子スピン液体 / カイラル秩序 / 磁化プラトー / カイラル液体 / 1次元S=1スピン類 / 密度行列繰り込み群法 / 厳密対角化法 / 有限磁場基底状態 / 磁化のプラトー / 磁化のジャンプ / 基底状態相図 / 1次元S=1量子スピン系 / 1次元S=1スピン鎖 / 磁場中基底状態 / one-dimensional S=1 spin chain / density-matrix renormalization-group method / exact diagonalization method / finite-field ground state / magnetization plateau / magnetization jump / ground-state phase diagram / spin nanotube / spin gap / low-dimensional systems / nanomagnets / 熱起電力 / 三角格子 / 強磁性スピン揺らぎ / スレーブボソン / ペアトランスファー / 多軌道 / 超伝導転移温度 / 超伝導ギャップ / 結晶場分裂 / フント則結合 / スピン状態転移 / 重い電子 / 動的平均場理論 / cobalt oxides / electron correlation / d-p model / frustration / superconductivity / charge order / orbital order / metal-insulator transition / 密度行列繰り込み群 / 古典スピン系 / スケーリング解析 / 高次特異値分解 / 量子古典対応 / 厳密対角化 / 角転送行列繰り込み群 / フラストレート系 / 行列積状態 / エンタングルメント / 射影表現 / テンソルネットワーク状態 / テンソル繰り込み群 / 横磁場イジング模型 / 量子情報理論 / 素粒子論 / 宇宙論 / 物性理論 / ゲージ重力対応 / 物性物理 / 冷却原子 / 量子ホール効果 Less
  • Research Projects

    (16 results)
  • Research Products

    (174 results)
  • Co-Researchers

    (50 People)
  •  The Natural Laws of Extreme Universe--A New Paradigm for Spacetime and Matter from Q uantum Information

    • Principal Investigator
      高柳 匡
    • Project Period (FY)
      2021 – 2025
    • Research Category
      Grant-in-Aid for Transformative Research Areas (A)
    • Review Section
      Transformative Research Areas, Section (II)
    • Research Institution
      Kyoto University
  •  Quantum many-body systems and tensor networks from quantum information perspectivesPrincipal Investigator

    • Principal Investigator
      奥西 巧一
    • Project Period (FY)
      2021 – 2025
    • Research Category
      Grant-in-Aid for Transformative Research Areas (A)
    • Review Section
      Transformative Research Areas, Section (II)
    • Research Institution
      Niigata University
  •  Energy-scale controlling of quantum many-body systems and entanglemet renormalizationPrincipal Investigator

    • Principal Investigator
      Okunishi Kouichi
    • Project Period (FY)
      2017 – 2020
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      Mathematical physics/Fundamental condensed matter physics
    • Research Institution
      Niigata University
  •  Entanglement controle in quantum many-body systems by non-local transfromation and negative sign problemPrincipal Investigator

    • Principal Investigator
      Okunishi Kouichi
    • Project Period (FY)
      2014 – 2017
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Mathematical physics/Fundamental condensed matter physics
    • Research Institution
      Niigata University
  •  Optimization of tensor network state using higher order singular value decomposition

    • Principal Investigator
      Ueda Hiroshi
    • Project Period (FY)
      2013 – 2017
    • Research Category
      Grant-in-Aid for Young Scientists (B)
    • Research Field
      Mathematical physics/Fundamental condensed matter physics
    • Research Institution
      Institute of Physical and Chemical Research
      Meiji University
  •  Theory of Novel Quantum Phenomena Created by Spin, Charge, and Chirality in the Spin Nanotube

    • Principal Investigator
      SAKAI TORU
    • Project Period (FY)
      2011 – 2014
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      Condensed matter physics II
    • Research Institution
      University of Hyogo
  •  Quantum entanglement for tensor product states and numerical renormalization groupsPrincipal Investigator

    • Principal Investigator
      OKUNISHI Kouichi
    • Project Period (FY)
      2011 – 2013
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Mathematical physics/Fundamental condensed matter physics
    • Research Institution
      Niigata University
  •  強磁場の創る新奇スピン秩序状態の理論解析Principal Investigator

    • Principal Investigator
      奥西 巧一
    • Project Period (FY)
      2008 – 2009
    • Research Category
      Grant-in-Aid for Scientific Research on Priority Areas
    • Review Section
      Science and Engineering
    • Research Institution
      Niigata University
  •  Theoretical and numerical study on anomalous quantum phenomena in the spin nanotubes

    • Principal Investigator
      SAKAI Toru
    • Project Period (FY)
      2008 – 2010
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      Condensed matter physics II
    • Research Institution
      University of Hyogo
      Japan Atomic Energy Agency
  •  密度行列くりこみ群を用いた強磁場スピン物性の研究Principal Investigator

    • Principal Investigator
      奥西 巧一
    • Project Period (FY)
      2006 – 2007
    • Research Category
      Grant-in-Aid for Scientific Research on Priority Areas
    • Review Section
      Science and Engineering
    • Research Institution
      Niigata University
  •  renormalization group analysis of the corner HamiltonianPrincipal Investigator

    • Principal Investigator
      OKUNISHI Kouichi
    • Project Period (FY)
      2006 – 2008
    • Research Category
      Grant-in-Aid for Young Scientists (B)
    • Research Field
      Mathematical physics/Fundamental condensed matter physics
    • Research Institution
      Niigata University
  •  コバルト酸化物の電子状態と超伝導の理論

    • Principal Investigator
      ONO Yoshiaki
    • Project Period (FY)
      2005 – 2006
    • Research Category
      Grant-in-Aid for Scientific Research on Priority Areas
    • Review Section
      Science and Engineering
    • Research Institution
      Niigata University
  •  Theoretical and Numerical Study on Anomalous Quantum Phenomena of the Spin Nanotube

    • Principal Investigator
      SAKAI Toru
    • Project Period (FY)
      2005 – 2007
    • Research Category
      Grant-in-Aid for Scientific Research (B)
    • Research Field
      Condensed matter physics II
    • Research Institution
      Japan Atomic Energy Institute
  •  Theory of anomalous properties and novel superconductivity due to many body effects in cobalt oxides

    • Principal Investigator
      ONO Yoshiaki
    • Project Period (FY)
      2005 – 2007
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Condensed matter physics II
    • Research Institution
      Niigata University
  •  Novel quantum state in a high-spin chain created by the spontaneous symmetry breaking

    • Principal Investigator
      TONEGAWA Takashi
    • Project Period (FY)
      2004 – 2005
    • Research Category
      Grant-in-Aid for Scientific Research (C)
    • Research Field
      Condensed matter physics II
    • Research Institution
      Fukui University of Technology
  •  インターネットを利用した計算物理に関する国際共同研究の試み

    • Principal Investigator
      小林 迪助
    • Project Period (FY)
      2002
    • Research Category
      Grant-in-Aid for Exploratory Research
    • Research Field
      Science education
    • Research Institution
      Niigata University

All 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 Other

All Journal Article Presentation

  • [Journal Article] 量子多体系とテンソルネットワーク ~ 表現形式の普遍性 ~2022

    • Author(s)
      奥西巧一
    • Journal Title

      数理科学

      Volume: 703 Pages: 33-38

    • Data Source
      KAKENHI-PLANNED-21H05191
  • [Journal Article] Optical selection rules of the magnetic excitation in the S = 1/2 one-dimensional Ising-like antiferromagnet BaCo2V2O82022

    • Author(s)
      S. Kimura, H. Onishi, A. Okutani, M. Akaki, Y. Narumi, M. Hagiwara, K. Okunishi, K. Kindo, Z. He, T. Taniyama, M. Itoh
    • Journal Title

      Physical Review B

      Volume: 105 Pages: 014417-014417

    • DOI

      10.1103/physrevb.105.014417

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-19K03678, KAKENHI-PROJECT-19K03745, KAKENHI-PROJECT-17K18758, KAKENHI-PLANNED-21H05191, KAKENHI-PROJECT-19H01834, KAKENHI-PROJECT-21H01026, KAKENHI-PROJECT-21H01035
  • [Journal Article] Finite-m scaling analysis of Berezinskii-Kosterlitz-Thouless phase transitions and entanglement spectrum for the six-state clock model2020

    • Author(s)
      Ueda Hiroshi、Okunishi Kouichi、Harada Kenji、Krcmar Roman、Gendiar Andrej、Yunoki Seiji、Nishino Tomotoshi
    • Journal Title

      Physical Review E

      Volume: 101 Pages: 062111-062111

    • DOI

      10.1103/physreve.101.062111

    • NAID

      120006865707

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-17K14359, KAKENHI-PROJECT-17H02931, KAKENHI-PROJECT-17K05578
  • [Journal Article] Tensor-network strong-disorder renormalization groups for random quantum spin systems in two dimensions2020

    • Author(s)
      Kouichi Seki, Toshiya Hikihara, and Kouichi Okunishi
    • Journal Title

      Physical Review B

      Volume: 102 Pages: 144439-144439

    • DOI

      10.1103/physrevb.102.144439

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-19K03664, KAKENHI-PROJECT-17H02931
  • [Journal Article] Unconventional magnetic excitations and spin dynamics of exotic quantum spin systems BaCo_2V_2O_8 and Ba_3CuSb_2O_92020

    • Author(s)
      Han Yibo、Kimura Shojiro、Okunishi Kouichi、Hagiwara Masayuki
    • Journal Title

      Applied Magnetic Resonance

      Volume: 2020 Pages: 1-14

    • DOI

      10.1007/s00723-020-01296-w

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-17H02931
  • [Journal Article] Corner transfer matrix renormalization group analysis of the two-dimensional dodecahedron model2020

    • Author(s)
      Ueda Hiroshi、Okunishi Kouichi、Yunoki Seiji、Nishino Tomotoshi
    • Journal Title

      Physical Review E

      Volume: 102 Pages: 032130-032130

    • DOI

      10.1103/physreve.102.032130

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-17K14359, KAKENHI-PROJECT-17H02931, KAKENHI-PROJECT-17K05578
  • [Journal Article] Lattice Unruh Effect and World-line Entanglement for the XXZ Chain2019

    • Author(s)
      Okunishi Kouichi、Seki Kouichi
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 88 Issue: 11 Pages: 114002-114002

    • DOI

      10.7566/jpsj.88.114002

    • NAID

      40022062642

    • ISSN
      0031-9015, 1347-4073
    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-17H02931
  • [Journal Article] Snapshot Spectra in the World-Line Quantum Monte Carlo for One-Dimensional Quantum Spin Systems2019

    • Author(s)
      Seki Kouichi、Okunishi Kouichi
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 88 Issue: 2 Pages: 024003-024003

    • DOI

      10.7566/jpsj.88.024003

    • NAID

      210000135087

    • ISSN
      0031-9015, 1347-4073
    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-17H02931
  • [Journal Article] Magnetic Properties of One- and Two-Dimensional Functional Materials: Oxygen Molecules Encapsulated in Single-Walled Carbon Nanotubes and Copper Ions Embedded into Phthalocyanine Sheets2019

    • Author(s)
      M. Hagiwara, T. Kida, K. Matsuda, H. Kyakuno, Y. Mniwa, Z. Honda, Y. Sakaguchi, M. Tashiro, M. Sakai, T. Fukuda, N. Kamata and K. Okunishi
    • Journal Title

      Open Chemistry Journal

      Volume: 6 Pages: 27-33

    • DOI

      10.2174/1874842201906010027

    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-16K04926, KAKENHI-PROJECT-17H02931
  • [Journal Article] A low-energy effective model for the S=1/2 Kagome-triangular-strip Heisenberg model2018

    • Author(s)
      Okunishi Kouichi、Onozato Yoshitaka、Seki Kouichi
    • Journal Title

      AIP Advances

      Volume: 8 Pages: 101401-101401

    • DOI

      10.1063/1.5042702

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-17H02931
  • [Journal Article] Phase Transitions for Cuboc Orders in Stacked Kagome Heisenberg Systems2018

    • Author(s)
      Seki Kouichi、Okunishi Kouichi
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 87 Issue: 2 Pages: 023001-023001

    • DOI

      10.7566/jpsj.87.023001

    • NAID

      210000134681

    • ISSN
      0031-9015, 1347-4073
    • Peer Reviewed / Open Access
    • Data Source
      KAKENHI-PROJECT-17H02931, KAKENHI-PROJECT-16J02724
  • [Journal Article] Spin-Wave Analysis for Kagome-Triangular Spin System and Coupled Spin Tubes: Low-Energy Excitation for the Cuboc Order2017

    • Author(s)
      Ochiai Masahiro、Seki Kouichi、Okunishi Kouichi
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 86 Issue: 11 Pages: 114701-114701

    • DOI

      10.7566/jpsj.86.114701

    • NAID

      210000134583

    • ISSN
      0031-9015, 1347-4073
    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-17H02931, KAKENHI-PROJECT-16J02724, KAKENHI-PROJECT-26400387
  • [Journal Article] Critical behavior of the two-dimensional icosahedron model2017

    • Author(s)
      Ueda Hiroshi、Okunishi Kouichi、Krcmar Roman、Gendiar Andrej、Yunoki Seiji、Nishino Tomotoshi
    • Journal Title

      PHYSICAL REVIEW E

      Volume: 96 Pages: 1-5

    • DOI

      10.1103/physreve.96.062112

    • Peer Reviewed / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-17K05578, KAKENHI-PROJECT-17K14359, KAKENHI-PROJECT-17H02931, KAKENHI-PROJECT-26400387, KAKENHI-PROJECT-25800221
  • [Journal Article] Sine-square deformation and Mobius quantization of two-dimensional conformal field theory2016

    • Author(s)
      Kouichi Okunishi
    • Journal Title

      Progress of Theoretical and Experimental Physics

      Volume: 6

    • DOI

      10.1093/ptep/ptw060

    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-26400387
  • [Journal Article] Symmetry-protected topological order and negative-sign problem for SO(N) bilinear-biquadratic chains2014

    • Author(s)
      Kouchi Okunishi and Kenji Harada
    • Journal Title

      Physcal review B

      Volume: 89 Pages: 134422-134422

    • DOI

      10.1103/physrevb.89.134422

    • NAID

      120005666211

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-23540450, KAKENHI-PROJECT-26400387
  • [Journal Article] Doubling of Entanglement Spectrum in Tensor Renormalization Group2014

    • Author(s)
      Hiroshi Ueda, Kouichi okunishi, Tomotoshi Nishino
    • Journal Title

      Phys. Rev

      Volume: 89 Pages: 1-10

    • DOI

      10.1103/physrevb.89.075116

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22540388, KAKENHI-PROJECT-23340109, KAKENHI-PROJECT-23540442, KAKENHI-PROJECT-25400401, KAKENHI-PROJECT-25800221
  • [Journal Article] Fine-Tuning of Magnetic Interactions in Organic Spin Ladders2014

    • Author(s)
      H. Yamaguchi
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 83 Issue: 3 Pages: 033707-033707

    • DOI

      10.7566/jpsj.83.033707

    • NAID

      210000132985

    • ISSN
      0031-9015, 1347-4073
    • Peer Reviewed / Acknowledgement Compliant
    • Data Source
      KAKENHI-PROJECT-23340109, KAKENHI-PROJECT-23540442, KAKENHI-PROJECT-24340075, KAKENHI-PROJECT-24540347, KAKENHI-PROJECT-24740241, KAKENHI-PROJECT-24840013, KAKENHI-PROJECT-25800186
  • [Journal Article] Snapshot Spectrum and Critical Phenomenon for Two-Dimensional Classical Spin Systems2014

    • Author(s)
      Yukinari Imura, Tsuyoshi Okubo, Satoshi Morita, Kouichi Okunishi
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 83 Issue: 11 Pages: 114002-114002

    • DOI

      10.7566/jpsj.83.114002

    • NAID

      210000133329

    • ISSN
      0031-9015, 1347-4073
    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-26400387
  • [Journal Article] Quantum Phase Transition in 1/3 Plateau of the Quantum Spin Tube2013

    • Author(s)
      K. Okunishi
    • Journal Title

      J. Korean Phys. Soc.

      Volume: 63 Pages: 596-600

    • DOI

      10.3938/jkps.63.596

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-23340109, KAKENHI-PROJECT-23540388
  • [Journal Article] Collapse of Magnetic Order of the Quasi One-Dimensional Ising-Like Antiferromagnet BaCo2V2O8 in Transverse Fields2013

    • Author(s)
      Shojiro Kimura, Koichi Okunishi, Masayuki Hagiwara, Koichi Kindo, Zhangzhen He, Tomoyasu Taniyama, Mitsuru Itoh, Keiichi Koyama, and Kazuo Watanabe
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: vol.82 Issue: 3 Pages: 033706-033706

    • DOI

      10.7566/jpsj.82.033706

    • ISSN
      0031-9015, 1347-4073
    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-23246113, KAKENHI-PROJECT-23340109, KAKENHI-PROJECT-23540442
  • [Journal Article] Magnetic Field-Induced Phase Transitions in the S=1/2 Two-Leg Spin-Ladder Material Cu(DEP)Br22012

    • Author(s)
      Z. Honda, H.A. Katori, M. Ikeda, M. Hagiwara, K. Okunishi, M. Sakai, T. Fukuda, N. Kamata
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 81 Issue: 11 Pages: 113710-113710

    • DOI

      10.1143/jpsj.81.113710

    • ISSN
      0031-9015, 1347-4073
    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-22360003, KAKENHI-PROJECT-22760531, KAKENHI-PROJECT-23340109, KAKENHI-PROJECT-23540442
  • [Journal Article] Spin-Chirality Separation and S3-Symmetry Breakings in the Magnetization Plateau of the Quantum Spin Tube2012

    • Author(s)
      Kouichi Okunishi, Masahiro Sato, Toru Sakai, Kiyomi Okamoto, and Chigak. Itoi
    • Journal Title

      Physcal Review B

      Volume: 85 Pages: 54416-54416

    • DOI

      10.1103/physrevb.85.054416

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-21740295, KAKENHI-PUBLICLY-22014012, KAKENHI-PUBLICLY-22014016, KAKENHI-PROJECT-23340109, KAKENHI-PROJECT-23540388, KAKENHI-PROJECT-23540442
  • [Journal Article] Novel Phase Transition Probed by Sound Velocity in Quasi-One-Dimensional Ising-Like Antiferromagnet BaCo2V2O82011

    • Author(s)
      H.Yamaguchi
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 80 Issue: 3 Pages: 033701-033701

    • DOI

      10.1143/jpsj.80.033701

    • ISSN
      0031-9015, 1347-4073
    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-23340109, KAKENHI-PROJECT-23540442
  • [Journal Article] Topological disentangler for the valence-bond-solid chain2011

    • Author(s)
      K.Okunishi
    • Journal Title

      Physical Review B

      Volume: 83

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20340096
  • [Journal Article] Topological disentangler for the valence-bond-solid chain2011

    • Author(s)
      K.Okunishi
    • Journal Title

      Physical Review B

      Volume: 83

    • DOI

      10.1103/physrevb.83.104411

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-23340109
  • [Journal Article] Field Induced Exotic Phenomena of the S=1/2 Three-Leg Quantum Spin Nanotube2010

    • Author(s)
      T. Sakai, K. Okunishi, K. Okamoto, C. Itoi and M. Sato
    • Journal Title

      J. Low Temperature Phys

      Volume: 159 Pages: 55-58

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20340096
  • [Journal Article] Quantum Spin Nanotubes-frustration, competing orders and criticalities2010

    • Author(s)
      T. Sakai, M. Sato, K. Okamoto, K. Okunishi and C. Itoi
    • Journal Title

      J. Phys. Condens. Matter

      Volume: 22

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20340096
  • [Journal Article] Half Magnetization Plateau of a Frustrated S=1 Antiferromagnetic Chain2010

    • Author(s)
      T. Tonegawa, H. Nakano, T. Sakai, K. Okamoto, K. Okunishi and K. Nomura
    • Journal Title

      J. Phys. Conf. Ser

      Volume: 200

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20340096
  • [Journal Article] Wang-Landau simulation of the quasi-one-dimensional spin systems2010

    • Author(s)
      K.Okunishi
    • Journal Title

      Journal of Physics : Conference Series 200

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20340096
  • [Journal Article] Wang-Landau simulation of the quasi-one-dimensional spin systems2010

    • Author(s)
      K.Okunishi, T.Tanabe
    • Journal Title

      J.Phys.Conf.Series 200

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20030003
  • [Journal Article] Quantum Spin Nanotubes-frustration, competing orders and criticalities2010

    • Author(s)
      T.Sakai, M.Sato, K.Okunishi, K.Okamoto, C.Itoi
    • Journal Title

      Journal of Physics : Condensed Matter 22

    • Data Source
      KAKENHI-PROJECT-20340096
  • [Journal Article] Field Induced Exotic Phenomena of the S=1/2 Three-Leg Quantum Spin Nanotube2010

    • Author(s)
      T.Sakai, K.Okunishi, K.Okamoto, C.Itoi, M.Sato
    • Journal Title

      Journal of Low Temperature Physics 159

      Pages: 55-58

    • Data Source
      KAKENHI-PROJECT-20340096
  • [Journal Article] Wang-Landau simulation of the quasi-one-dimensional spin systems2010

    • Author(s)
      K.Okunishi
    • Journal Title

      Journal of Physics : Conference Series

      Volume: 200 Pages: 22043-22043

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20340096
  • [Journal Article] Scale free property and edge state of Wilson's numerical renormalization group2010

    • Author(s)
      K.Okunishi
    • Journal Title

      Physical Review B

      Volume: 82

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20340096
  • [Journal Article] Wang-Landau simulation for the quasi-one-dimensional Isingmodel2009

    • Author(s)
      Takayuki Tanabe and Kouichi Okunishi
    • Journal Title

      J. Bhys. Soc. Jpn. 78(印刷中)

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18740230
  • [Journal Article] Wang-Landau simulation for the quasi-one-dimensional Ising model2009

    • Author(s)
      T.Tanabe, K.Okunishi
    • Journal Title

      J.Phys.Soc.Jpn. 78

    • NAID

      10025960201

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20030003
  • [Journal Article] Quantum Phase Transition of a Triangular Lattice Spin Tube and Edge Spin Effects2009

    • Author(s)
      K.Okunishi, S.Yoshikawa, T.Sakai, S.Miyashita
    • Journal Title

      International Journal of Modern Physics C20

      Pages: 1423-1430

    • Data Source
      KAKENHI-PROJECT-20340096
  • [Journal Article] Magnetic Field versus Temperature Phase Diagram of the Spin-1/2 Alternating-Bond Chain Compound F5PNN2009

    • Author(s)
      Y. Yoshida, T. Kawae, Y. Hosokoshi, K. Inoue, N. Maeshima, K. Okunishi, K. Okamoto and T. Sakai
    • Journal Title

      J. Phys. Soc. Jpn

      Volume: 78

    • NAID

      130005437533

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20340096
  • [Journal Article] Quantum Phase Transition of a Triangular Lattice Spin Tube and Edge Spin Effects2009

    • Author(s)
      K.Okunishi
    • Journal Title

      International Journal of Modern Physics C 20

      Pages: 1423-1430

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20340096
  • [Journal Article] Quantum Phase Transition of a Triangular Lattice Spin Tube and Edge Spin Effects2009

    • Author(s)
      K. Okunishi, S. Yoshikawa, T. Sakai and S. Miyashita
    • Journal Title

      Int. J. Mod. Phys. C

      Volume: 20 Pages: 1423-1430

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20340096
  • [Journal Article] Quantum phase transitions of the asymmetric three-leg spin tube2008

    • Author(s)
      T.Sakai, M.Sato, K.Okunishi, Y.Otsuka, K.Okamoto, C.itoi
    • Journal Title

      Physical Review B78

    • Data Source
      KAKENHI-PROJECT-20340096
  • [Journal Article] Longitudinal SDW order in a quasi-1D Ising-like quantum antiferromagnet2008

    • Author(s)
      S. Kimura, M. Matsuda, T. Masuda, S. Hondo, K. Kaneko, N. Metoki, M. Hagiwara, T. Takeuchi, K. Okunishi, Z. He, K. Kindo, T. Taniyama, M. Itoh
    • Journal Title

      Phys. Rev. Lett 101

      Pages: 207201-207201

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18740230
  • [Journal Article] Quantum phase transitions of the asymmetric three-leg spin tube2008

    • Author(s)
      Toru Sakai, Masahiro Sato, Kouichi Okunishi, Yuichi Otsuka, Kiyomi Okamoto, Chigak Itoi
    • Journal Title

      Phys. Rev B 78

      Pages: 184415-184415

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18740230
  • [Journal Article] On calculation of vector spin chirality for zigzag spin chains2008

    • Author(s)
      Kouichi Okunishi
    • Journal Title

      J. Bhys. Soc. Jpn. 77

      Pages: 114004-114004

    • NAID

      110006983740

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18740230
  • [Journal Article] On calculation of vector spin chirality for zigzag spin chains2008

    • Author(s)
      Kouichi Okunishi
    • Journal Title

      J. Phys. Soc. Jpn 77

      Pages: 114004-114004

    • NAID

      110006983740

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18740230
  • [Journal Article] On calculation of vector spin chirality for zigzag spin chains2008

    • Author(s)
      K. Okunishi
    • Journal Title

      Journal of Physical Society of Japan 77

    • NAID

      110006983740

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20340096
  • [Journal Article] On calculation of vector spin chirality for zigzag spin chains2008

    • Author(s)
      Kouichi Okunishi
    • Journal Title

      J. Phys. Soc. Jpn 77

      Pages: 114004-114004

    • NAID

      110006983740

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20030003
  • [Journal Article] Novel ordering of an S = 1/2 quasi one-dimensional Ising-like anitiferromagnet in magnetic field2008

    • Author(s)
      S. Kimura, T. Takeuchi, K. Okunishi, M. Hagiwara, Z. He, K. Kindo, T. Taniyama, M. Itoh
    • Journal Title

      Phys. Rev. Lett 100

      Pages: 57202-57202

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18740230
  • [Journal Article] Quantum phase transitions of the asymmetric three-leg spin tube2008

    • Author(s)
      T. Sakai, M. Sato, K. Okunishi, Y. Otsuka, K. Okamoto and C. Itoi
    • Journal Title

      Phys. Rev. B

      Volume: 78

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-20340096
  • [Journal Article] Wilson-like real-space renormalization group and low-energy effective spectrum of the XXZ chain in the gapless regime2007

    • Author(s)
      Kouichi Okunishi
    • Journal Title

      Journal of Physical Society of Japan 76

      Pages: 63001-63001

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18740230
  • [Journal Article] Wilson-like real-space renormalization group and low-energy effective spectrum of the XXZ chain in the critical regime2007

    • Author(s)
      Kouichi Okunishi
    • Journal Title

      J. Phys. Soc. Jpn 76

      Pages: 63001-63001

    • NAID

      110006342573

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18740230
  • [Journal Article] Exotic Finite Temperature Phase Diagram for Weakly Coupled S = 1/2 XXZ Chain in a Magnetic Field2007

    • Author(s)
      Takahumi Suzuki, Naoki Kawashima and Kouichi Okunishi
    • Journal Title

      J. Phys. Soc. Jpn 76

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18740230
  • [Journal Article] Wilson-Like Real-Space Renormalization Group and Low-Energy Effective Spectrum of the XXZ Chain in the Critical Regime2007

    • Author(s)
      Kouichi Okunishi
    • Journal Title

      Journal of the Physical Society of Japan 76

    • NAID

      110006342573

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-17540317
  • [Journal Article] Field-induced incommensurate order for the quasi-one-dimensional XXZ model in a magnetic field2007

    • Author(s)
      K.Okunishi
    • Journal Title

      Physical Review B 76

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-17340100
  • [Journal Article] Chemical potential-electron density curve of the zigzag Hubbard ladder for Pr2472007

    • Author(s)
      Kouichi Okunishi
    • Journal Title

      J. Mag. Mag. Matt. (印刷中)

    • Data Source
      KAKENHI-PROJECT-18044004
  • [Journal Article] Field-induced incommensurate order for the quasi-one-dimensional XXZ model in a magnetic field2007

    • Author(s)
      Kouichi Okunishi
    • Journal Title

      Physical Review B 76

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-17540317
  • [Journal Article] Filling dependence of the zigzag Hubbard ladder for the quasi-one-dimensional superconductor Pr_2Ba_4Cu_7O_<15-δ>2007

    • Author(s)
      Kouichi Okunishi
    • Journal Title

      Phys. Rev. B 75

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-17540317
  • [Journal Article] Filling dependence of the zigzag Hubbard ladder for the quasi-one-dime nsional superconductor Pr_2Ba_4Cu_7O_<15-δ>2007

    • Author(s)
      Kouichi Okunishi
    • Journal Title

      Physical Review B 75

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-17540317
  • [Journal Article] Field-induced incommensurate order for the quasi-one-dimensional XXZ model in a magnetic field2007

    • Author(s)
      Kouichi Okunishi
    • Journal Title

      Phys. Rev. B 76

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-17540317
  • [Journal Article] Wilson-like real-space renormalization group and low-energy effective spectrum of the XXZ chain in the critical regime2007

    • Author(s)
      Kouichi, Okunishi
    • Journal Title

      J. Phys. Soc. Jpn Vol.76

    • NAID

      110006342573

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-17540317
  • [Journal Article] Chemical potential-electron density curve of the zigzag Hubbard ladder for Pr2472007

    • Author(s)
      Kouichi Okunishi
    • Journal Title

      J. Mag. Mag. Matt. (印刷中)

    • Data Source
      KAKENHI-PROJECT-18740230
  • [Journal Article] Wilson-like real space renormalization group and low energy effective spectrum of the XXZ chain in the critical regime2007

    • Author(s)
      K. Okunishi
    • Journal Title

      Journal of the Physical Society of Japan 76

    • NAID

      110006342573

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-17340100
  • [Journal Article] Quantum Phase Transition in the three-leg nanotube2007

    • Author(s)
      T.Sakai, K.Okunishi, K.Okamoto, M.Sato, M.Matsumoto, Y.Otsuka
    • Journal Title

      J. Mag. Mag. Matt. 310

    • Data Source
      KAKENHI-PROJECT-18740230
  • [Journal Article] Wilson-like real-space renormalization group and low-energy effective spectrum of the XXZ chain in the critical regime2007

    • Author(s)
      K.Okunishi
    • Journal Title

      Journal of Physical Society of Japan 76

    • NAID

      110006342573

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-17340100
  • [Journal Article] Field-induced incommensurate order for the quasi-one-dimensional XXZ model in a magnetic field2007

    • Author(s)
      K. Okunishi
    • Journal Title

      Physical Review B 76

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-17340100
  • [Journal Article] Wilson-like real-space renormalization group and low-energy effective spectrum of the XXZ chain in the critical regime2007

    • Author(s)
      Kouichi Okunishi
    • Journal Title

      J. Phys. Soc. Jpn. 76

    • NAID

      110006342573

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-17540317
  • [Journal Article] Filling dependence of the zigzag Hubbard ladder for the quasi-one-dime nsional superconductor Pr2Ba4Cu7O15-δ2007

    • Author(s)
      K. Okunishi
    • Journal Title

      Physical Review B 75

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-17340100
  • [Journal Article] Filling dependence of the zigzag Hubbard ladder for the quasi-one-dimensional superconductor Pr2Ba4Cu7O{15-delta}2007

    • Author(s)
      Kouichi Okunishi
    • Journal Title

      Phys. Rev B75

      Pages: 174514-174514

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18740230
  • [Journal Article] Filling dependence of the zigzag Hubbard ladder for the quasi-one-dimensional superconductor Pr_2Ba_4Cu_7O_15-δ2007

    • Author(s)
      Kouichi, Okunishi
    • Journal Title

      Phys. Rev. B Vol.75

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-17540317
  • [Journal Article] Field induced order-disorder transition driven by a softening of spinon excitation2007

    • Author(s)
      S. Kimura, T. Takeuchi, K. Okunishi, M. Hagiwara, Z. He, K. Kindo, T. Taniyama, M. Itoh
    • Journal Title

      Physical Review Letters 99

      Pages: 87602-87602

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18044004
  • [Journal Article] Field induced order-disorder transition driven by a softening of spinon excitation2007

    • Author(s)
      S. Kimura, H. Yashiro, K. Okunishi, M. Hagiwara, Z. He, K. Kindo, T. Taniyama, M. Itoh
    • Journal Title

      Phys. Rev. Lett 99

      Pages: 87602-87602

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18740230
  • [Journal Article] Filling dependence of the zigzag Hubbard ladder for the quasi-one-dimensional superconductor Pr2Ba4Cu7O15-δ2007

    • Author(s)
      K.Okunishi
    • Journal Title

      Physical Review B 75

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-17340100
  • [Journal Article] Exotic Finite-Temperature Phase Diagram for Weakly Coupled S=1/2 XXZ Chain in a Magnetic Field2007

    • Author(s)
      T. Suzuki, N. Kawashima, K. Okunishi
    • Journal Title

      Journal of the Physical Society of Japan 76

      Pages: 123707-123707

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18044004
  • [Journal Article] Field-Induced incommensurate order for the quasi-one-dimensional XXZ model in a magnetic field2007

    • Author(s)
      K. Okunishi and T. Suzuki
    • Journal Title

      Physical Review B 76

      Pages: 224411-224411

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18044004
  • [Journal Article] Exotic Finite-Temperature Phase Diagram for Weakly Coupled S=1/2 XXZ Chain in a Magnetic Field2007

    • Author(s)
      Kouichi Okunishi
    • Journal Title

      Journal of the Physical Society of Japan 76

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-17540317
  • [Journal Article] Filling dependence of the zigzag Hubbard ladder for the quasi-one-dimensional superconductor Pr_2Ba_4Cu_7O<15-δ>2007

    • Author(s)
      K.Okunishi
    • Journal Title

      Physical Review B 75

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-17340100
  • [Journal Article] Quantum Phase Transition in the three-leg nanotube2007

    • Author(s)
      T.Sakai, K.Okunishi, K.Okamoto, M.Sato, M.Matsumoto, Y.Otsuka
    • Journal Title

      J. Mag. Mag. Matt. 310

    • Data Source
      KAKENHI-PROJECT-18044004
  • [Journal Article] Field-Induced incommensurate order for the quasi-one-dimensional XXZ model in a magnetic field2007

    • Author(s)
      K. Okunishi and T. Suzuki
    • Journal Title

      Physical Review B 76

      Pages: 224411-224411

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18740230
  • [Journal Article] Field-induced incommensurate order for the quasi-one-dimensional XXZ model in a magnetic field2007

    • Author(s)
      Kouichi Okunishi and Takahumi Suzuki
    • Journal Title

      Phys. Rev B 76

      Pages: 224411-224411

    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-18740230
  • [Journal Article] Possibiity of field-induced incommensurate order in a quasi-one-dimensional frustrated spin system2006

    • Author(s)
      N.Maesshima, K.Okunishi, K.okamoto, T.Sakai, K.Yonemitsu
    • Journal Title

      J. Phys : condens. Matt. 18

      Pages: 4819-4826

    • Data Source
      KAKENHI-PROJECT-18044004
  • [Journal Article] Possibiity of field-induced incommensurate order in a quasi-one dimensional frustrated spin system2006

    • Author(s)
      N.Maesshima, K.Okunishi, K.okamoto, T.Sakai, K.Yonemitsu
    • Journal Title

      J. Phys : condens. Matt. 18

      Pages: 4819-4826

    • Data Source
      KAKENHI-PROJECT-18740230
  • [Journal Article] Field-Induced Incommensurate Order in a Quasi-1D Antiferromagnet2006

    • Author(s)
      T.Sakai, K.Okamoto, K.Okunishi, T.Tonegawa
    • Journal Title

      Proc.24th Int.Conf.Low Temperature Physics (in press)

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-16540332
  • [Journal Article] Real-space renormalization group approach for the corner Hamiltonian2005

    • Author(s)
      Kouichi Okunishi
    • Journal Title

      Journal of the Physical Society of Japan Vol.74 No.12

      Pages: 3186-3192

    • NAID

      110002975239

    • Data Source
      KAKENHI-PROJECT-17038011
  • [Journal Article] Fractional Sz Excitation and its Boundstate for the S=1/2 Antiferro-magnetic Zigzag Spin Chain in a Magnetic Field2005

    • Author(s)
      K.Okunishi, T.Tonegawa
    • Journal Title

      J.Phys.Soc.Jpn 74(Suppl)

      Pages: 151-156

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-16540332
  • [Journal Article] Real-space renormalization group approach for the corner Hamiltonian2005

    • Author(s)
      K.Okunishi
    • Journal Title

      Journal of Physical Society of Japan 74

      Pages: 3186-3192

    • NAID

      110002975239

    • Data Source
      KAKENHI-PROJECT-17340100
  • [Journal Article] Real-space renormalization group approach for the corner Hamiltonian2005

    • Author(s)
      Kouichi Okunishi
    • Journal Title

      Journal of the Physical Society of Japan Vol.74 No.12

      Pages: 3186-3192

    • NAID

      110002975239

    • Data Source
      KAKENHI-PROJECT-17540317
  • [Journal Article] Fractional Sz Excitation and its Boundstate for the S=1/2 Antiferromagnetic Zigzag Spin Chain in a Magnetic Field2005

    • Author(s)
      Kouichi Okunishi
    • Journal Title

      J. Phys. Soc. Jpn. 74.Suppl.

      Pages: 151-156

    • Description
      「研究成果報告書概要(和文)」より
    • Data Source
      KAKENHI-PROJECT-16540332
  • [Journal Article] Low-energy excitations of the S=1/2 quantum spin tube with triangular lattice structure2005

    • Author(s)
      K.Okunishi
    • Journal Title

      Progress of Theoretical Physics Supplement 159

      Pages: 297-301

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-17340100
  • [Journal Article] Real-Space Renormalization Group Approach for the Corner Hamiltonian2005

    • Author(s)
      Kouichi Okunishi
    • Journal Title

      Journal of the Physical Society of Japan 74

      Pages: 3186-3192

    • NAID

      110002975239

    • Description
      「研究成果報告書概要(和文)」より
    • Peer Reviewed
    • Data Source
      KAKENHI-PROJECT-17540317
  • [Journal Article] Real-Space Renormalization Group Approach for the Corner Hamiltonian2005

    • Author(s)
      Kouichi, Okunishi
    • Journal Title

      J. Phys. Soc. Jpn. Vol.74

      Pages: 3186-3192

    • NAID

      110002975239

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-17540317
  • [Journal Article] Fractional S^z Excitation and its Boundstate for the S=1/2 Antiferromagnetic Zigzag Spin Chain in a Magnetic Field2005

    • Author(s)
      Kouichi Okunishi
    • Journal Title

      J.Phys.Soc.Jpn. 74,Suppl.

      Pages: 151-156

    • Data Source
      KAKENHI-PROJECT-16540332
  • [Journal Article] Finite-Field Ground State of an S=1 Anisotropic Antiferromagnetic Chain2005

    • Author(s)
      T.Tonegawa, K.Okunishi, T.Sakai, M.Kaburagi
    • Journal Title

      Prog.Thore.Phys. No.159(Supplement)

      Pages: 77-81

    • Description
      「研究成果報告書概要(欧文)」より
    • Data Source
      KAKENHI-PROJECT-16540332
  • [Journal Article] Fractional Sz excitation and its bound state for the S=1/2 antifeiromagnetic zigzag spin chain in a magnetic field2005

    • Author(s)
      K.Okunishi
    • Journal Title

      Journal of Physical Society of Japan Supplement 74

      Pages: 151-156

    • Data Source
      KAKENHI-PROJECT-17340100
  • [Presentation] AKLT鎖におけるスピンの角度時間発展とその端状態への依存性2022

    • Author(s)
      中島康太郎、奥西巧一
    • Organizer
      日本物理学会 2022年年次大会
    • Data Source
      KAKENHI-PLANNED-21H05191
  • [Presentation] Criticality, duality, and topology in quantum spin-1 chains2021

    • Author(s)
      Hong Yang, Linhao Li, Kouichi Okunishi, Hosho Katsura
    • Organizer
      日本物理学会 2021年秋季大会
    • Data Source
      KAKENHI-PLANNED-21H05191
  • [Presentation] "Lattice Unruh effect and world-line entanglement for the XXZ chain"2021

    • Author(s)
      Kouichi Okunishi
    • Organizer
      Recent progress in theoretical physics based on quantum information theory
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-17H02931
  • [Presentation] XXZ鎖における格子Unruh効果と世界線のエンタングルメント2020

    • Author(s)
      奥西巧一
    • Organizer
      日本物理学会秋季大会
    • Data Source
      KAKENHI-PROJECT-17H02931
  • [Presentation] エンタングルメント分割と樹状テンソルネットワークの相互情報量最適化原理2019

    • Author(s)
      奥西巧一、上田宏、西野友年
    • Organizer
      日本物理学会秋期大会
    • Data Source
      KAKENHI-PROJECT-17H02931
  • [Presentation] XXZ鎖における格子Unruh効果と世界線エンタングルメント2019

    • Author(s)
      奥西巧一
    • Organizer
      サイン2乗変形(SSD)とその周辺2019
    • Data Source
      KAKENHI-PROJECT-17H02931
  • [Presentation] 実空間繰り込み群法の改良と二次元ランダム量子スピン系への適用2019

    • Author(s)
      関孝一、引原俊哉、奥西巧一
    • Organizer
      日本物理学会秋季大会
    • Data Source
      KAKENHI-PROJECT-17H02931
  • [Presentation] Corner transfer matrix and lattice Unruh effect for the XXZ chain2019

    • Author(s)
      奥西巧一
    • Organizer
      Tensor Network States: Algorithms and Applications 2019-2020
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-17H02931
  • [Presentation] 1次元量子系のエンタングルメントスペクトルとCFTのメビウス量子化2019

    • Author(s)
      奥西巧一
    • Organizer
      日本物理学会年次大会(九州大学)
    • Data Source
      KAKENHI-PROJECT-17H02931
  • [Presentation] Numerical strong-disorder renormalization group for two-dimensional random quantum spin systems2019

    • Author(s)
      関孝一、引原俊哉、奥西巧一
    • Organizer
      Tensor Network States: Algorithms and Applications 2019-2020
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-17H02931
  • [Presentation] A low-energy effective model for the S=1/2 Kagome-triangular-strip Heisenberg model2018

    • Author(s)
      Kouichi Okunishi
    • Organizer
      International Conference of Magnetism 2018
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-17H02931
  • [Presentation] カゴメ 三角ストリップ模型の有効模型2018

    • Author(s)
      小野里佳孝, 奥西巧一, 関孝一
    • Organizer
      日本物理学会第73回年次大会
    • Data Source
      KAKENHI-PROJECT-26400387
  • [Presentation] サイン2乗変形と運動量2018

    • Author(s)
      奥西巧一
    • Organizer
      日本物理学会第73回年次大会
    • Data Source
      KAKENHI-PROJECT-17H02931
  • [Presentation] 共形場理論のメビウス量子化とエンタングルメント2018

    • Author(s)
      奥西巧一
    • Organizer
      日本物理学会秋季大会(同志社大学)
    • Data Source
      KAKENHI-PROJECT-17H02931
  • [Presentation] カゴメ 三角ストリップ模型の有効模型2018

    • Author(s)
      小野里佳孝, 奥西巧一, 関孝一
    • Organizer
      日本物理学会第73回年次大会
    • Data Source
      KAKENHI-PROJECT-17H02931
  • [Presentation] サイン2乗変形と運動量2018

    • Author(s)
      奥西巧一
    • Organizer
      日本物理学会第73回年次大会
    • Data Source
      KAKENHI-PROJECT-26400387
  • [Presentation] 離散化された古典ハイゼンベルグ模型に現れる相転移2017

    • Author(s)
      上田宏, 奥西巧一, Roman Krcmar, Andrej Gendiar, 柚木清司, 西野友年
    • Organizer
      日本物理学会第2017年秋期大会
    • Data Source
      KAKENHI-PROJECT-17H02931
  • [Presentation] 離散化された古典ハイゼンベルグ模型に現れる相転移2017

    • Author(s)
      上田宏, 奥西巧一, Roman Krcmar, Andrej Gendiar, 柚木清司, 西野友年
    • Organizer
      日本物理学会2017年秋季大会
    • Data Source
      KAKENHI-PROJECT-25800221
  • [Presentation] カゴメ 三角格子ストリップ上のスピン模型の磁化過程2017

    • Author(s)
      小野里佳孝, 奥西巧一, 関孝一
    • Organizer
      日本物理学会2017年秋季大会
    • Data Source
      KAKENHI-PROJECT-26400387
  • [Presentation] カゴメ 三角格子ストリップ上のスピン模型の磁化過程2017

    • Author(s)
      小野里佳孝, 奥西巧一, 関孝一
    • Organizer
      日本物理学会第2017年秋期大会
    • Data Source
      KAKENHI-PROJECT-17H02931
  • [Presentation] サイン2乗変形と2次元共形場理論のメビウス量子化2017

    • Author(s)
      奥西巧一
    • Organizer
      日本物理学会第72回年次大会
    • Place of Presentation
      大阪大学
    • Year and Date
      2017-03-17
    • Data Source
      KAKENHI-PROJECT-26400387
  • [Presentation] 離散化された古典ハイゼンベルグ模型に現れる相転移2017

    • Author(s)
      上田宏, 奥西巧一, Roman Krcmar, Andrej Gendiar, 柚木清司, 西野友年
    • Organizer
      日本物理学会2017年秋季大会
    • Data Source
      KAKENHI-PROJECT-26400387
  • [Presentation] Sine-square deformation and Mobius quantization of 2D CFTs2017

    • Author(s)
      Kouichi Okunishi
    • Organizer
      Workshop on Sine square deformation and related topics
    • Data Source
      KAKENHI-PROJECT-17H02931
  • [Presentation] Snapshot spectrum and critical phenomenon for the 2D classical spin system2016

    • Author(s)
      Kouichi Okunishi
    • Organizer
      Tensor Network States: Algorithms and Applications 2016
    • Place of Presentation
      Okazaki Conference center
    • Year and Date
      2016-01-11
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-26400387
  • [Presentation] Sine-square deformatioin and Mobius quantization of 2D CFTs2016

    • Author(s)
      Kouichi Okunishi
    • Organizer
      4 th workshop pn tensor network states -algorithms and applications
    • Place of Presentation
      台湾 国立精華大学
    • Year and Date
      2016-12-12
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-26400387
  • [Presentation] Snapshot spectrum of world line quantum monte carlo for one-dimensinal quantum spin systems2016

    • Author(s)
      Kouichi Seki and Kouichi Okunishi
    • Organizer
      4 th workshop pn tensor network states -algorithms and applications
    • Place of Presentation
      台湾 国立精華大学
    • Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-26400387
  • [Presentation] 不純物問題の数値くりこみ群とエンタングルメント2016

    • Author(s)
      奥西巧一
    • Organizer
      第71回日本物理学会年次大会
    • Place of Presentation
      東北学院大学
    • Year and Date
      2016-03-19
    • Invited
    • Data Source
      KAKENHI-PROJECT-26400387
  • [Presentation] Sine-square deformation and Nobius quantization of CFT2016

    • Author(s)
      Kouichi Okunishi
    • Organizer
      Squantum Information in String Theory and Many-body systems
    • Place of Presentation
      京都大学 基礎物理学研究所
    • Year and Date
      2016-05-31
    • Invited / Int'l Joint Research
    • Data Source
      KAKENHI-PROJECT-26400387
  • [Presentation] 1次元量子スピン系のスナップショットスペクトルと相関関数2015

    • Author(s)
      奥西巧一
    • Organizer
      日本物理学科秋季大会
    • Place of Presentation
      関西大学
    • Year and Date
      2015-09-16
    • Data Source
      KAKENHI-PROJECT-26400387
  • [Presentation] Symmetry-protected topological entanglement and negative sign problem for SO(N) bilinear-biquadratic chains2014

    • Author(s)
      Kouichi Okunishi
    • Organizer
      Tensor Network States: Algorithms and Applications
    • Place of Presentation
      中国科学院物理学研究所
    • Year and Date
      2014-12-04
    • Invited
    • Data Source
      KAKENHI-PROJECT-26400387
  • [Presentation] 数値くりこみ群の発展‐密度行列くりこみ群からMERAまで2014

    • Author(s)
      奥西巧一
    • Organizer
      日本物理学会
    • Place of Presentation
      東海大学(神奈川県)
    • Invited
    • Data Source
      KAKENHI-PROJECT-23340109
  • [Presentation] 数値くりこみ群の発展‐密度行列くりこみ群からMERAまで2014

    • Author(s)
      奥西巧一
    • Organizer
      日本物理学会年次大会
    • Place of Presentation
      東海大学
    • Invited
    • Data Source
      KAKENHI-PROJECT-23540442
  • [Presentation] 数値くりこみ群の発展-DMRGからMERA まで2014

    • Author(s)
      奥西巧一
    • Organizer
      日本物理学会年次大会
    • Place of Presentation
      東海大学
    • Year and Date
      2014-03-27
    • Invited
    • Data Source
      KAKENHI-PROJECT-23540442
  • [Presentation] bilinear-biquadratic 鎖の負符号問題2013

    • Author(s)
      奥西巧一
    • Organizer
      日本物理学会年次大会
    • Place of Presentation
      広島大学
    • Year and Date
      2013-03-26
    • Data Source
      KAKENHI-PROJECT-23540442
  • [Presentation] bilinear-biquadratic スピン鎖の負符号問題II2013

    • Author(s)
      奥西巧一, 他
    • Organizer
      日本物理学会秋季大会
    • Place of Presentation
      徳島大学
    • Year and Date
      2013-09-26
    • Data Source
      KAKENHI-PROJECT-23540442
  • [Presentation] bilinear-biquadratic鎖の負符号問題2013

    • Author(s)
      奥西巧一
    • Organizer
      日本物理学会
    • Place of Presentation
      広島大学
    • Data Source
      KAKENHI-PROJECT-23540442
  • [Presentation] bilinear-biquadraticスピン鎖の負符号問題II2013

    • Author(s)
      奥西巧一,原田健自
    • Organizer
      日本物理学会秋季大会
    • Place of Presentation
      徳島大学
    • Data Source
      KAKENHI-PROJECT-23540442
  • [Presentation] Wilson 数値くりこみ群とエンタングルメント2012

    • Author(s)
      奥西巧一
    • Organizer
      日本物理学会年次大会
    • Place of Presentation
      関西学院大学
    • Year and Date
      2012-03-26
    • Data Source
      KAKENHI-PROJECT-23540442
  • [Presentation] 数値的くりこみ群アルゴリズムとエンタングルメント2012

    • Author(s)
      奥西巧一
    • Organizer
      日本物理学会
    • Place of Presentation
      横浜国立大学
    • Invited
    • Data Source
      KAKENHI-PROJECT-23540442
  • [Presentation] Wilson 数値くりこみ群の場の理論化2012

    • Author(s)
      奥西巧一
    • Organizer
      日本物理学会秋季大会
    • Place of Presentation
      横浜国立大学
    • Year and Date
      2012-09-14
    • Data Source
      KAKENHI-PROJECT-23540442
  • [Presentation] Quantum phase transitions in 1/3 plateau of quantum spin tube2012

    • Author(s)
      奥西巧一
    • Organizer
      国際磁性学会議
    • Place of Presentation
      プサン国際会議場
    • Year and Date
      2012-07-13
    • Data Source
      KAKENHI-PROJECT-23540442
  • [Presentation] Wilson数値繰り込み群とエンタングルメント2012

    • Author(s)
      奥西巧一
    • Organizer
      日本物理学会年次大会
    • Place of Presentation
      関西学院大学
    • Data Source
      KAKENHI-PROJECT-23540442
  • [Presentation] Quantum phase transitions in 1/3 plateau of the quantum spin tube2012

    • Author(s)
      Kouichi Okunishi
    • Organizer
      国際磁性学会議(ICM)
    • Place of Presentation
      プサン国際会議場
    • Data Source
      KAKENHI-PROJECT-23540442
  • [Presentation] 数値くりこみ群アルゴリズムとエンタングルメント2012

    • Author(s)
      奥西巧一
    • Organizer
      日本物理学会秋季大会
    • Place of Presentation
      横浜国立大学
    • Year and Date
      2012-09-14
    • Invited
    • Data Source
      KAKENHI-PROJECT-23540442
  • [Presentation] Wilsonの数値繰り込み群の場の理論化2012

    • Author(s)
      奥西巧一
    • Organizer
      日本物理学会
    • Place of Presentation
      横浜国立大学
    • Data Source
      KAKENHI-PROJECT-23540442
  • [Presentation] 量子スピンチューブの最近の発展(理論)2012

    • Author(s)
      奥西巧一
    • Organizer
      京都大学基礎物理学研究所研究会「量子スピン系の物理」
    • Place of Presentation
      京都大学基礎物理学研究所(京都府)
    • Invited
    • Data Source
      KAKENHI-PROJECT-23340109
  • [Presentation] スピンチューブのプラトー状態での内部対称性と新奇秩序の数値的研究2011

    • Author(s)
      奥西巧一, 他
    • Organizer
      日本物理学会秋季大会
    • Place of Presentation
      富山大学
    • Year and Date
      2011-09-22
    • Data Source
      KAKENHI-PROJECT-23540442
  • [Presentation] VBS 状態のDisentanglerII2011

    • Author(s)
      奥西巧一, 他
    • Organizer
      日本物理学会秋季大会
    • Place of Presentation
      富山大学
    • Year and Date
      2011-09-21
    • Data Source
      KAKENHI-PROJECT-23540442
  • [Presentation] 密度行列くり込み群を用いたフラストレーション量子スピン系の磁化過程の研究2010

    • Author(s)
      奥西巧一
    • Organizer
      日本物理学会年次大会
    • Place of Presentation
      岡山大学
    • Year and Date
      2010-03-21
    • Data Source
      KAKENHI-PROJECT-20030003
  • [Presentation] Quantum Phase Transitions of Three-Leg Spin Nanotubes2010

    • Author(s)
      K.Okunishi
    • Organizer
      International Workshop on Statistical Physics of Quantum Systems
    • Place of Presentation
      東京大学生産技術研究所
    • Year and Date
      2010-08-02
    • Data Source
      KAKENHI-PROJECT-20340096
  • [Presentation] 擬一次元Ising型反強磁性体B_aCo_2V_2O_8の磁歪のQMCによる解析2008

    • Author(s)
      田辺孝行,奥西巧一
    • Organizer
      日本物理学会春季大会
    • Place of Presentation
      立教大学
    • Year and Date
      2008-04-27
    • Data Source
      KAKENHI-PROJECT-18740230
  • [Presentation] S=1/2擬一次元XXZ モデル物質B_aCo_2V_2O_8の磁場中磁気励起2008

    • Author(s)
      本堂英,益田隆嗣,松浦直人,奥西巧一,木村尚次郎,萩原政幸,松田雅昌,金子耕士,目時直人,K. Rule
    • Organizer
      日本物理学会春季大会
    • Place of Presentation
      立教大学
    • Year and Date
      2008-04-27
    • Data Source
      KAKENHI-PROJECT-18740230
  • [Presentation] Wang-Landauシミュレーションによる擬一次元系古典スピン模型の解析2008

    • Author(s)
      田辺孝行,奥西巧一
    • Organizer
      日本物理学会春季大会
    • Place of Presentation
      近畿大学
    • Year and Date
      2008-04-24
    • Data Source
      KAKENHI-PROJECT-18740230
  • [Presentation] Wang-Landau法を用いた擬1次元古典XXZ模型のスピンフロップ転移の解析2008

    • Author(s)
      田辺孝行,奥西巧一
    • Organizer
      日本物理学会秋季大会
    • Place of Presentation
      岩手大学
    • Year and Date
      2008-09-23
    • Data Source
      KAKENHI-PROJECT-18740230
  • [Presentation] ジグザグスピン鎖のベクトルカイラル秩序2008

    • Author(s)
      奥西巧一
    • Organizer
      日本物理学会
    • Place of Presentation
      岩手大学
    • Year and Date
      2008-09-23
    • Data Source
      KAKENHI-PROJECT-20030003
  • [Presentation] 擬1次元XXZ 模型における磁場誘起非整合秩序2008

    • Author(s)
      奥西巧一,鈴木隆史
    • Organizer
      日本物理学会春季大会
    • Place of Presentation
      近畿大学
    • Year and Date
      2008-04-25
    • Data Source
      KAKENHI-PROJECT-18740230
  • [Presentation] ジグザグスピン鎖のベクトルカイラル秩序2008

    • Author(s)
      奥西巧一
    • Organizer
      日本物理学会秋季大会
    • Place of Presentation
      岩手大学
    • Year and Date
      2008-09-22
    • Data Source
      KAKENHI-PROJECT-18740230
  • [Presentation] =1/2 擬一次元反強磁性XXZ モデル物質B_aCo_2V_2O_8のゼロ磁場磁気励起の観測2008

    • Author(s)
      本堂英,益田隆嗣,松浦直人,奥西巧一,木村尚次郎,萩原政幸,松田雅昌,金子耕士,目時直人
    • Organizer
      日本物理学会秋季大会
    • Place of Presentation
      岩手大学
    • Year and Date
      2008-09-21
    • Data Source
      KAKENHI-PROJECT-18740230
  • [Presentation] 擬一次元Ising型反強磁性体B_aCo_2V_2O_8の強磁場中放射光X 線回折2008

    • Author(s)
      木村尚次郎,萩原政幸,吉居俊輔,鳴海康雄,寺田典樹,田中良和,岩城雅裕,勝又紘一,奥西巧一,金道浩一,何長振,谷山智康,伊藤満,豊川秀訓,石川哲也,北村英男
    • Organizer
      日本物理学会春季大会
    • Place of Presentation
      立教大学
    • Year and Date
      2008-04-27
    • Data Source
      KAKENHI-PROJECT-18740230
  • [Presentation] 擬一次元Ising 型反強磁性体B_aCo_2V_2O_8の磁場誘起非整合相の観測2008

    • Author(s)
      木村尚次郎,松田雅昌,益田隆嗣,本堂英,金子耕士,目時直人,萩原政幸,奥西巧一,鈴木隆史,何長振,谷山智康,伊藤満
    • Organizer
      日本物理学会春季大会
    • Place of Presentation
      近畿大学
    • Year and Date
      2008-04-25
    • Data Source
      KAKENHI-PROJECT-18740230
  • [Presentation] 3本鎖スピンチューブの量子相転移2008

    • Author(s)
      転移坂井徹,奥西巧一,大塚雄一,岡本清美,佐藤正寛,糸井千岳
    • Organizer
      日本物理学会秋季大会
    • Place of Presentation
      岩手大学
    • Year and Date
      2008-09-22
    • Data Source
      KAKENHI-PROJECT-18740230
  • [Presentation] Wang-Landau法を用いた擬1次元古典XXZ模型のスピンフロップ転移の解析2008

    • Author(s)
      田辺孝行、奥西巧一
    • Organizer
      日本物理学会
    • Place of Presentation
      岩手大学
    • Year and Date
      2008-09-23
    • Data Source
      KAKENHI-PROJECT-18740230
  • [Presentation] 弱い鎖間相互作用を持つS=1/2 反強磁性XXZ スピン鎖の磁場中非整合スピン密度波状態と有限温度転移2008

    • Author(s)
      鈴木隆史,川島直輝,奥西巧一
    • Organizer
      日本物理学会春季大会
    • Place of Presentation
      近畿大学
    • Year and Date
      2008-04-25
    • Data Source
      KAKENHI-PROJECT-18740230
  • [Presentation] 擬1次元XXZ模型における磁場誘起非整合秩序2008

    • Author(s)
      奥西巧一
    • Organizer
      日本物理学会 第63回年次大会
    • Place of Presentation
      近畿大学
    • Year and Date
      2008-03-25
    • Data Source
      KAKENHI-PROJECT-17540317
  • [Presentation] 3本鎖スピンチューブの磁化過程2007

    • Author(s)
      坂井徹,大塚雄一,佐藤正寛,奥西巧一
    • Organizer
      日本物理学会秋季大会
    • Place of Presentation
      北海道大学
    • Year and Date
      2007-09-21
    • Data Source
      KAKENHI-PROJECT-18740230
  • [Presentation] 三角形量子スピンチューブにおける1次量子相転移2007

    • Author(s)
      奥西巧一
    • Organizer
      日本物理学会 第62回年次大会
    • Place of Presentation
      北海道大学
    • Year and Date
      2007-09-21
    • Data Source
      KAKENHI-PROJECT-17540317
  • [Presentation] 擬一次元磁性体B_aCo_2V_2O_8 の強磁場比熱2007

    • Author(s)
      木村尚次郎,竹内徹也,奥西巧一,鈴木隆史,萩原政幸,何長振,金道浩一,谷山智康,伊藤満
    • Organizer
      日本物理学会秋季大会
    • Place of Presentation
      北海道大学
    • Year and Date
      2007-09-21
    • Data Source
      KAKENHI-PROJECT-18740230
  • [Presentation] 三角量子スピンチューブにおける1次量子相転移2007

    • Author(s)
      奥西巧一
    • Organizer
      日本物理学会
    • Place of Presentation
      北海道大学
    • Year and Date
      2007-09-21
    • Data Source
      KAKENHI-PROJECT-18740230
  • [Presentation] 三角形量子スピンチューブにおける1次量子相転移2007

    • Author(s)
      奥西巧一,佐藤正寛,坂井徹
    • Organizer
      日本物理学会秋季大会
    • Place of Presentation
      北海道大学
    • Year and Date
      2007-09-21
    • Data Source
      KAKENHI-PROJECT-18740230
  • [Presentation] Wilson 型実空間くりこみ群とXXZ スピン鎖の低エネルギー励起スペクトル2007

    • Author(s)
      奥西巧一
    • Organizer
      日本物理学会春季大会
    • Place of Presentation
      鹿児島大学
    • Year and Date
      2007-03-18
    • Data Source
      KAKENHI-PROJECT-18740230
  • [Presentation] 擬一次元磁性体B_aCo_2V_2O_8 の強磁場磁性II2007

    • Author(s)
      木村尚次郎,八代晴彦,萩原政幸,奥西巧一,何長振,金道浩一,谷山智康,伊藤満
    • Organizer
      日本物理学会春季大会
    • Place of Presentation
      鹿児島大学
    • Year and Date
      2007-03-19
    • Data Source
      KAKENHI-PROJECT-18740230
  • [Presentation] 正方格子反強磁性S=1/2XXZ モデルにおける磁場中非整合-整合秩序の競合2007

    • Author(s)
      鈴木隆史,川島直輝,奥西巧一
    • Organizer
      日本物理学会春季大会
    • Place of Presentation
      鹿児島大学
    • Year and Date
      2007-03-18
    • Data Source
      KAKENHI-PROJECT-18740230
  • [Presentation] スピンラダー物質Na_2Fe_2(C_2O_4)_3(H_2O)_2 の強磁場磁化と多周波ESRIII2007

    • Author(s)
      山口博則,柏木隆成,木村尚次郎,本多善太郎,山田興治,奥西巧一,金道浩一,萩原政幸
    • Organizer
      日本物理学会春季大会
    • Place of Presentation
      鹿児島大学
    • Year and Date
      2007-03-19
    • Data Source
      KAKENHI-PROJECT-18740230
  • [Presentation] 擬一次元量子スピンS=1/2XXZ モデルの磁場中秩序状態2007

    • Author(s)
      鈴木隆史,川島直輝,奥西巧一
    • Organizer
      日本物理学会秋季大会
    • Place of Presentation
      北海道大学
    • Year and Date
      2007-09-21
    • Data Source
      KAKENHI-PROJECT-18740230
  • [Presentation] ジグザグハバード模型のフィリング依存性II2006

    • Author(s)
      奥西巧一
    • Organizer
      日本物理学会秋季大会
    • Place of Presentation
      千葉大学
    • Year and Date
      2006-09-24
    • Data Source
      KAKENHI-PROJECT-18740230
  • [Presentation] 三本鎖スピンチューブ系における量子相転移の数値的研究2006

    • Author(s)
      大塚雄一,奥西巧一,岡本清美,松本宗久,佐藤正寛,坂井徹
    • Organizer
      日本物理学会秋季大会
    • Place of Presentation
      千葉大学
    • Year and Date
      2006-09-23
    • Data Source
      KAKENHI-PROJECT-18740230
  • [Presentation] Guiding Principle of Tensor Renormalization Group with Tensor Decomposition Method

    • Author(s)
      Hiroshi Ueda, Kouichi Okunishi, and Tomotoshi Nishino
    • Organizer
      25th IUPAP International Conference on Statistical Physics
    • Place of Presentation
      Seoul, Korea
    • Data Source
      KAKENHI-PROJECT-25800221
  • [Presentation] 世界線量子モンテカルロ法におけるスナップショットのスペクトル分解II

    • Author(s)
      関孝一、奥西巧一
    • Organizer
      日本物理学会秋季大会
    • Place of Presentation
      中部大学
    • Year and Date
      2014-09-07 – 2014-09-10
    • Data Source
      KAKENHI-PROJECT-26400387
  • [Presentation] VBS状態のDisentangler II

    • Author(s)
      奥西巧一
    • Organizer
      日本物理学会秋季大会
    • Place of Presentation
      富山大学
    • Data Source
      KAKENHI-PROJECT-23540442
  • [Presentation] SO(N) bilinear-biquadratic スピン鎖の量子臨界性とストリング秩序の数値的研究

    • Author(s)
      原田健自,奥西巧一
    • Organizer
      日本物理学会秋季大会
    • Place of Presentation
      中部大学
    • Year and Date
      2014-09-07 – 2014-09-10
    • Data Source
      KAKENHI-PROJECT-26400387
  • [Presentation] 一般化Jordan-Wigner変換とZ2xZ2対称性

    • Author(s)
      奥西巧一、原田健二
    • Organizer
      日本物理学会秋季大会
    • Place of Presentation
      中部大学
    • Year and Date
      2014-09-07 – 2014-09-10
    • Data Source
      KAKENHI-PROJECT-26400387
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    # of Collaborated Products: 4 results
  • 2.  SAKAI Toru (60235116)
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    # of Collaborated Products: 10 results
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  • 41.  AKAKI Mitsuru
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