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MOTT TRANSITIONS AND ANOMALOUS QUANTUM PHASES IN CORRELATED ELECTRON SYSTEMS

Research Project

Project/Area Number 21540359
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Condensed matter physics II
Research InstitutionKyoto University

Principal Investigator

KAWAKAMI Norio  京都大学, 大学院・理学研究科, 教授 (10169683)

Project Period (FY) 2009 – 2011
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2011: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2010: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2009: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywordsモット転移 / 量子凝縮相 / 光格子 / フラストレーション / 量子ゆらぎ / 強相関 / 強相関電子系
Research Abstract

In this research, we have clarified a variety of anomalous phenomena that emerge near the Mott transition in strongly correlated systems. We have studied not only electron systems but also cold atom systems which have been studied extensively in recent years. In particular, we have elucidated the Mott transitions in multiorbital and frustrated systems, quantum phase transitions and quench dynamics in cold Fermi systems, a new type of many-body effect in a Bose-Fermi mixture, etc.

Report

(4 results)
  • 2011 Annual Research Report   Final Research Report ( PDF )
  • 2010 Annual Research Report
  • 2009 Annual Research Report
  • Research Products

    (52 results)

All 2012 2011 2010 2009 Other

All Journal Article (19 results) (of which Peer Reviewed: 19 results) Presentation (32 results) Remarks (1 results)

  • [Journal Article] Criteria of off-diagonal long-range order in Bose and Fermi systems based on the Lee-Yang cluster expansion method2012

    • Author(s)
      N. Sakumichi, N. Kawakami and M. Ueda
    • Journal Title

      Phys. Rev

      Volume: A85 Issue: 4 Pages: 1-19

    • DOI

      10.1103/physreva.85.043601

    • Related Report
      2011 Annual Research Report 2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Criteria of off-diagonal long-range order in Bose and Fermi systems based on the Lee-Yang cluster expansion method2012

    • Author(s)
      N.Sakumichi, N.Kawakami, M.Ueda
    • Journal Title

      Phys.Rev.A

      Volume: 85

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Spin-Depairing Transition of Attractive Fermi Gases on a Ring Driven by Synthetic Gauge Fields2011

    • Author(s)
      S. Uchino and N. Kawakami
    • Journal Title

      Phys. Rev. A

      Volume: 85 Issue: 1 Pages: 1-8

    • DOI

      10.1103/physreva.85.013610

    • Related Report
      2011 Annual Research Report 2011 Final Research Report 2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Quantum phases of Bose-Fermi mixtures in optical lattices2011

    • Author(s)
      Kazuto Noda, Robert Peters, Norio Kawakami, Thomas
    • Journal Title

      Journal of Physics : Conference Series

      Volume: 273 Pages: 1-4

    • DOI

      10.1088/1742-6596/273/1/012146

    • Related Report
      2011 Annual Research Report 2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Orbital-selective Mott transition in multiorbital Hubbard model with orbital degeneracy lifting2011

    • Author(s)
      T. Kita, T. Ohashi and N. Kawakami
    • Journal Title

      J. Phys. Soc. Jpn.

      Volume: 80 Issue: Suppl.A Pages: 1-3

    • DOI

      10.1143/jpsjs.80sa.sa142

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Dynamical Mean Field Study of the Kondo Lattice Model with Frustration2011

    • Author(s)
      R.Peters, N.Kawaami, T.Pruschke
    • Journal Title

      Journal of Physics : Conference Series

      Volume: 320 Pages: 1-61

    • DOI

      10.1088/1742-6596/320/1/012057

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Quantum phases of Bose-Fermi mixtures in optical lattices2011

    • Author(s)
      K.Noda, R.Peters, N.Kawakami, Th.Pruschke
    • Journal Title

      Journal of Physics : Conference Series

      Volume: 273

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Mott transition in the Hubbard model on the anisotropic kagome lattice2010

    • Author(s)
      Y. Furukawa, T. Ohashi, Y. Koyama, and N. Kawakami
    • Journal Title

      Physical Review B

      Volume: 82 Issue: 16 Pages: 1-4

    • DOI

      10.1103/physrevb.82.161101

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Super fluid Properties of Ultracold Fermionic Atoms in Two-dimensional Optical Lattice2010

    • Author(s)
      Y. Fujihara, A. Koga and N. Kawakami
    • Journal Title

      Phys. Rev

      Volume: A81 Issue: 6 Pages: 1-7

    • DOI

      10.1103/physreva.81.063627

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Mott transition in the Hubbard model on the triangular lattice2010

    • Author(s)
      T. Yoshioka, A. Koga and N. Kawakami
    • Journal Title

      Physica Status Solidi

      Volume: 247 Issue: 3 Pages: 635-637

    • DOI

      10.1002/pssb.200983020

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Magnetically ordered state of cold fermions on a decorated square lattice2010

    • Author(s)
      K. Noda, A. Koga, N. Kawakami and Th. Pruschke
    • Journal Title

      J. Low Temp. Phys

      Volume: 158 Issue: 1-2 Pages: 79-84

    • DOI

      10.1007/s10909-009-0042-5

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Analysis of Superfluid State of Ultracold Fermions with Attractive Interactions in Two-dimensional Optical Lattices2010

    • Author(s)
      Y. Fujihara, A. Koga, and N. Kawakami
    • Journal Title

      Physica C

      Volume: 470 Pages: S991-S992

    • DOI

      10.1016/j.physc.2009.12.001

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Ferromagnetism of cold fermions loaded into a decorated square lattice2010

    • Author(s)
      K.Noda, A.Koga, N.Kawakami, Th.Pruschke
    • Journal Title

      Phys.Rev.A

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ferromagnetism of cold fermions loaded into a decorated square lattice2009

    • Author(s)
      K. Noda, A. Koga, N. Kawakami, T. Pruschke
    • Journal Title

      Phys. Rev

      Volume: A80 Issue: 6 Pages: 1-7

    • DOI

      10.1103/physreva.80.063622

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Superfluidity and magnetism in two-dimensional fermionic optical lattice systems2009

    • Author(s)
      Y. Fujihara, A. Koga and N. Kawakami
    • Journal Title

      Physica B : Condensed Matter

      Volume: 404 Issue: 19 Pages: 324-3327

    • DOI

      10.1016/j.physb.2009.07.090

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Nonadiabatic Dynamics of Ultracold Fermions in Optical Superlattices2009

    • Author(s)
      A. Yamamoto, M. Yamashita and N. Kawakami
    • Journal Title

      Journal of the Physical Society of Japan

      Volume: 78 Issue: 12 Pages: 123002-123002

    • DOI

      10.1143/jpsj.78.123002

    • NAID

      130005437257

    • ISSN
      0031-9015, 1347-4073
    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Zero-temperature Phase Diagram of Two Dimensional Hubbard Model2009

    • Author(s)
      K. Inaba, A. Koga, S. Suga and N. Kawakami
    • Journal Title

      J. of Physics : Conference Series

      Volume: 150 Issue: 4 Pages: 1-4

    • DOI

      10.1088/1742-6596/150/4/042066

    • Related Report
      2011 Final Research Report
    • Peer Reviewed
  • [Journal Article] Trapped ultracold fermions in double-well optical lattices2009

    • Author(s)
      A.Yamamoto, M.Yamashita, N.Kawakami
    • Journal Title

      J.Phys.Soc.Jpn. 78

    • NAID

      130005437196

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Superfluidity and magnetism in two-dimensional fermionic optical lattice systems2009

    • Author(s)
      Y.Fujihara, A.Koga, N.Kawakami
    • Journal Title

      Physica B : Condensed Matter 404

      Pages: 3324-3327

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Presentation] Lee-Yangの量子クラスター展開法による非対角長距離秩序の判定条件2012

    • Author(s)
      作道直幸, 川上則雄, 上田正仁
    • Organizer
      日本物理学会第67回年次大会
    • Place of Presentation
      関西大学(西宮)
    • Year and Date
      2012-03-24
    • Related Report
      2011 Final Research Report
  • [Presentation] 1次元引力フェルミ気体におけるスピン対破壊転移2012

    • Author(s)
      内野瞬, 川上則雄
    • Organizer
      日本物理学会第67回年次大会
    • Place of Presentation
      関西大学(西宮)
    • Year and Date
      2012-03-24
    • Related Report
      2011 Final Research Report
  • [Presentation] フェルミ粒子集団の衝突における多体量子効果2012

    • Author(s)
      尾崎順一, 手塚真樹, 川上則雄
    • Organizer
      日本物理学会第67回年次大会
    • Place of Presentation
      関西大学(西宮)
    • Year and Date
      2012-03-24
    • Related Report
      2011 Final Research Report
  • [Presentation] Topological Insulators and Anderson Transisions : A Quantum-Walk Study2011

    • Author(s)
      Norio Kawakami
    • Organizer
      International Workshop on Novel Quantum States in Condensed Matter
    • Place of Presentation
      Kyoto, Japan
    • Year and Date
      2011-11-17
    • Related Report
      2011 Final Research Report
  • [Presentation] Topological Insulators and Anderson Transisions : A Quantum-Walk Study2011

    • Author(s)
      Norio Kawakami
    • Organizer
      International Workshop on Novel Quantum States in Condensed Matter
    • Place of Presentation
      Kyoto, Japan(招待)
    • Year and Date
      2011-11-17
    • Related Report
      2011 Annual Research Report 2010 Annual Research Report
  • [Presentation] Time-Evolution of Quantum Particles in One Dimension2011

    • Author(s)
      Norio Kawakami
    • Organizer
      International Workshop on Simulation and Manipulation of Quantum Systems for Information Processing
    • Place of Presentation
      Juelich, Germany
    • Year and Date
      2011-10-17
    • Related Report
      2011 Final Research Report
  • [Presentation] Time-Evolution of Quantum Particles in One Dimension2011

    • Author(s)
      Norio Kawakami
    • Organizer
      International Workshop on Simulation and Manipulation of Quantum Systems for Information Processing
    • Place of Presentation
      Juelich, Germany(招待)
    • Year and Date
      2011-10-17
    • Related Report
      2011 Annual Research Report 2010 Annual Research Report
  • [Presentation] ボースフェルミ光格子混合系における相関効果2011

    • Author(s)
      野田数人, R. Peters, 川上則雄, Th. Pruschke
    • Organizer
      日本物理学会2011年秋季大会
    • Place of Presentation
      富山大学(富山)
    • Year and Date
      2011-09-23
    • Related Report
      2011 Final Research Report
  • [Presentation] 移動するスピン依存トラップによるフェルミ粒子系の衝突と励起2011

    • Author(s)
      尾崎順一, 手塚真樹, 川上則雄
    • Organizer
      日本物理学会2011年秋季大会
    • Place of Presentation
      富山大学(富山)
    • Year and Date
      2011-09-23
    • Related Report
      2011 Final Research Report
  • [Presentation] 三軌道ハバード模型におけるモット絶縁相とバンド絶縁相2011

    • Author(s)
      北倫子, 大橋琢磨, 川上則雄
    • Organizer
      日本物理学会2011年秋季大会
    • Place of Presentation
      富山大学(富山)
    • Year and Date
      2011-09-21
    • Related Report
      2011 Final Research Report
  • [Presentation] Analysis of quantum phases in Bose-Fermi mixtures in optical lattices2011

    • Author(s)
      J. Ozaki, M. Tezuka and N. Kawakami
    • Organizer
      International Conference on Low Temp. Physics
    • Place of Presentation
      Cambridge, UK
    • Year and Date
      2011-08-29
    • Related Report
      2011 Final Research Report
  • [Presentation] Analysis of quantum phases in Bose-Fermi mixtures in optical lattices2011

    • Author(s)
      K.Noda, R.Peters, N.Kawakami, Th.Pruschke
    • Organizer
      Strongly Correlated Electron Systems 2011
    • Place of Presentation
      Cambridge, UK
    • Year and Date
      2011-08-29
    • Related Report
      2011 Annual Research Report 2010 Annual Research Report
  • [Presentation] One-dimensional collision dynamics of fermion clusters2011

    • Author(s)
      Junichi Ozaki, Masaki Tezuka, Norio Kawakami
    • Organizer
      The 26th International Conference on Low Temperature Physics
    • Place of Presentation
      Beijin, China
    • Year and Date
      2011-08-10
    • Related Report
      2011 Annual Research Report 2010 Annual Research Report
  • [Presentation] 相関電子系におけるフラストレーションと多軌道効果2011

    • Author(s)
      川上則雄
    • Organizer
      トピカルミーティング「フラストレーションとスピン・電荷・軌道・格子自由度」
    • Place of Presentation
      彦根ビューホテル彦根市(招待)
    • Year and Date
      2011-07-01
    • Related Report
      2011 Annual Research Report 2010 Annual Research Report
  • [Presentation] 軌道分裂を有する三軌道ハバード模型におけるモット転移2011

    • Author(s)
      北倫子, 大橋琢磨, 川上則雄
    • Organizer
      日本物理学会2011年春の年会
    • Place of Presentation
      新潟大学(新潟)
    • Year and Date
      2011-03-28
    • Related Report
      2011 Final Research Report
  • [Presentation] 変分モンテカルロ法による多軌道ハバードモデルの電子相関効果の解析2011

    • Author(s)
      竹中裕斗, 鈴木龍太郎, 川上則雄
    • Organizer
      日本物理学会2011年春の年会
    • Place of Presentation
      新潟大学(新潟)
    • Year and Date
      2011-03-26
    • Related Report
      2011 Final Research Report
  • [Presentation] Nonmagnetic Mott Phases in Frustrated Electron Systems2010

    • Author(s)
      Norio Kawakami
    • Organizer
      International Workshop on Resonating Valence Bond Physics : Spin Liquids and Beyond
    • Place of Presentation
      Budapest, Hungary
    • Year and Date
      2010-10-13
    • Related Report
      2011 Final Research Report
  • [Presentation] 光格子ボースフェルミ冷却原子系における多体効果の役割2010

    • Author(s)
      野田数人、川上則雄、R. Peters, T. Pruschke
    • Organizer
      日本物理学会2010年秋季大会
    • Place of Presentation
      大阪府立大学(大阪)
    • Year and Date
      2010-09-26
    • Related Report
      2011 Final Research Report
  • [Presentation] 一次元光格子中のヘテロ接合界面における冷却フェルミ原子のダイナミクス2010

    • Author(s)
      山本篤史、山下眞、菅誠一郎、川上則雄
    • Organizer
      日本物理学会2010年秋季大会
    • Place of Presentation
      大阪府立大学(大阪)
    • Year and Date
      2010-09-26
    • Related Report
      2011 Final Research Report
  • [Presentation] 多軌道ハバード模型の軌道依存モット転移における軌道揺らぎの効果2010

    • Author(s)
      北倫子、大橋琢磨、川上則雄
    • Organizer
      日本物理学会2010年秋季大会
    • Place of Presentation
      大阪府立大学(大阪)
    • Year and Date
      2010-09-23
    • Related Report
      2011 Final Research Report
  • [Presentation] Relaxation of frustration and enhanced anisotropy near Mott transition2010

    • Author(s)
      Norio Kawakami
    • Organizer
      The 11th German-Japanese Symposium : New Quantum States and Phenomena in Condensed Matter
    • Place of Presentation
      Hiroshima, Japan
    • Year and Date
      2010-09-14
    • Related Report
      2011 Final Research Report
  • [Presentation] Effects of spatial fluctuations in two-orbital Hubbard model around Mott transition2010

    • Author(s)
      T. Kita, T. Ohashi, S. Suga, N. Kawakami
    • Organizer
      Workshop on Emergent Quantum States in Complex Correlated Matters
    • Place of Presentation
      Dresden, Germany
    • Year and Date
      2010-08-24
    • Related Report
      2011 Final Research Report
  • [Presentation] Bose-Fermi mixtures in optical lattices : generalized DMFT approach2010

    • Author(s)
      K. Noda, N. Kawakami, R. Peters, T. Pruschke
    • Organizer
      Statistical Physics of Quantum Systems
    • Place of Presentation
      Tokyo, Japan
    • Year and Date
      2010-08-12
    • Related Report
      2011 Final Research Report
  • [Presentation] Mott Transition in Triangular Lattice Systems : Some Implications for Frustrated Organic Materials2010

    • Author(s)
      Norio Kawakami
    • Organizer
      International Conference on Science and Technology of Synthetic Materials 2010
    • Place of Presentation
      Kyoto, Japan
    • Year and Date
      2010-07-06
    • Related Report
      2011 Final Research Report
  • [Presentation] Quantum phases of Bose-Fermi mixtures in optical lattices2010

    • Author(s)
      K. Noda, N. Kawakami, R. Peters, Th. Pruschke
    • Organizer
      Conference on Strongly Correlated Electron Systems 2010
    • Place of Presentation
      Santa Fe, USA
    • Year and Date
      2010-06-28
    • Related Report
      2011 Final Research Report
  • [Presentation] 束縛状態を持つ二成分冷却フェルミ気体の熱力学的性質2010

    • Author(s)
      作道直幸, 川上則雄, 上田正仁
    • Organizer
      日本物理学会第65回年次大会
    • Place of Presentation
      岡山大(岡山)
    • Year and Date
      2010-03-20
    • Related Report
      2011 Final Research Report
  • [Presentation] フェルミ原子光格子系におけるトラップ中での超流動状態のノイズ相関2010

    • Author(s)
      藤原祐介, 古賀昌久, 川上則雄
    • Organizer
      日本物理学会第65回年次大会
    • Place of Presentation
      岡山大(岡山)
    • Year and Date
      2010-03-20
    • Related Report
      2011 Final Research Report
  • [Presentation] 擬一次元光格子中における冷却フェルミ原子気体の相転移の解析II2009

    • Author(s)
      山本篤史, 山下眞, 川上則雄
    • Organizer
      日本物理学会2009年秋季大会
    • Place of Presentation
      熊本大学(熊本)
    • Year and Date
      2009-09-28
    • Related Report
      2011 Final Research Report
  • [Presentation] DMRG study of ultra cold fermionic atoms in optical lattices2009

    • Author(s)
      M. Yamashita, A. Yamamoto and N. Kawakami
    • Organizer
      Workshop on Matrix Product State Formulation and Density Matrix Re-normalization Group Simulations
    • Place of Presentation
      Kobe, Japan
    • Year and Date
      2009-08-12
    • Related Report
      2011 Final Research Report
  • [Presentation] DMRG study of ultracold fermionic atoms in optical lattices2009

    • Author(s)
      M.Yamashita, A.Yamamoto, N.Kawakami
    • Organizer
      Workshop on Matrix Product State Formulation and Density Matrix Renormalization Group Simulations
    • Place of Presentation
      神戸
    • Year and Date
      2009-08-12
    • Related Report
      2009 Annual Research Report
  • [Presentation] Magnetic transition in the Hubbard model on the triangular lattice2009

    • Author(s)
      T. Yoshioka, A. Koga and N. Kawakami
    • Organizer
      International Symposium on Crystalline Organic Metal, Superconductors and Ferro-magnets
    • Place of Presentation
      Hokkaido, Japan
    • Related Report
      2011 Final Research Report
  • [Presentation] Magnetic transition in the Hubbard model on the triangular lattice2009

    • Author(s)
      T. Yoshioka, A. Koga and N. Kawakami
    • Organizer
      Quantum Criticality and Novel Phases 2009
    • Place of Presentation
      Dresden, Germany
    • Related Report
      2011 Final Research Report
  • [Remarks]

    • URL

      http://cond.scphys.kyoto-u.ac.jp/

    • Related Report
      2011 Final Research Report

URL: 

Published: 2009-04-01   Modified: 2020-05-15  

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