Study of Topological Materials lead by quantum anomalies, branes and solitons

• Project Area: Discrete Geometric Analysis for Materials Design
• Project/Area Number: 17H06462
• Research Category: Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
• Allocation Type: Single-year Grants
• Review Section: Science and Engineering
• Research Institution: Osaka University
• Principal Investigator: 橋本 幸士 大阪大学, 理学研究科, 教授 (80345074)
• Co-Investigator(Kenkyū-buntansha): 日高 義将 国立研究開発法人理化学研究所, 仁科加速器科学研究センター, 専任研究員 (00425604) ; 押川 正毅 東京大学, 物性研究所, 教授 (50262043) ; 衛藤 稔 山形大学, 理学部, 教授 (50595361) ; 木村 太郎 慶應義塾大学, 経済学部(日吉), 助教 (90760794)
• Project Period (FY): 2017-06-30 – 2022-03-31
• Project Status: Granted (Fiscal Year 2020)
• Budget Amount: ¥88,660,000 (Direct Cost: ¥68,200,000、Indirect Cost: ¥20,460,000); Fiscal Year 2021: ¥19,500,000 (Direct Cost: ¥15,000,000、Indirect Cost: ¥4,500,000); Fiscal Year 2020: ¥19,500,000 (Direct Cost: ¥15,000,000、Indirect Cost: ¥4,500,000); Fiscal Year 2019: ¥19,500,000 (Direct Cost: ¥15,000,000、Indirect Cost: ¥4,500,000); Fiscal Year 2018: ¥19,500,000 (Direct Cost: ¥15,000,000、Indirect Cost: ¥4,500,000); Fiscal Year 2017: ¥10,660,000 (Direct Cost: ¥8,200,000、Indirect Cost: ¥2,460,000)
• Keywords: 超弦理論 / トポロジカル物質 / 離散幾何学 / AdS/CFT対応 / 格子理論 / 原子核理論

Outline of Annual Research Achievements

トポロジカル相とその分類や拡張、素粒子論や超弦理論との関係を探るため、次のような研究を実施した。
まず、電気分極の一般論を整備し、これを活用したトポロジカル相の定式化を進めた。また、境界のある共形場理論を応用し、不純物近傍における朝永・ラッティンジャー流体の相関関数を解析的に求め、密度行列くりこみ群による数値計算で検証した。
次に、位相的ソリトンによるブレーンワールドの構成について、長年の課題であったゼロ質量ゲージ場の局在問題をヒッグス場の凝縮によって自然に説明した。またヒッグス２重項が２つ存在するような拡張標準模型において新しいトポロジカルに安定な状態を発見し、模型に対する新しい制限が出ることを指摘した。
また、ハドロン物理学との関連に関しては、カイラルな粒子に対する運動論であるカイラル運動論を用いて、量子異常に関係した輸送現象を調べた。特に粒子間の衝突に起因した散逸輸送について、温度勾配と電場に垂直に流れるカレントや磁場に並行なシェアフローがある場合にその磁場に垂直に流れるカレントなど新しい輸送現象が存在することがわかった。
さらに、素粒子論との関係としては、超対称ゲージ理論の真空構造に創発する量子代数的構造、およびその可積分構造の解明を試み、特に non-simply-laced型の箙ゲージ理論の構成、対応する量子可積分系との関係を明らかにした。
超弦理論との関係に関しては、ホログラフィー原理を用いて周期外場下のディラック絶縁体の相図の解析を行い、外場に適切な周期を与えると容易に相転移が起きることを示した。また、その手法を応用し、時間依存する新しいブラックホール解の構築に成功した。さらに、ホログラフィー原理で発生する創発時空を、物質のスピン配列から生まれた深層ニューラルネットワークと考える方法を探求し、QCDに双対な時空をニューラルネット上で創発させることに成功した。

Current Status of Research Progress

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

Reason

まず、分拠については、Restaらによる電気分極の定式化では、あるユニタリ演算子の期待値の偏角を電気分極と考える。このユニタリ演算子は、トポロジカルに非自明なゲージ変換にほかならない。この関係を用い、系の動的性質と電気分極の関係を見出しつつある。
次に、位相的ソリトンによるブレーンワールドの構成については標準模型を比較的小さな変更だけで長年の懸案が解決できることを示すことができ、LHCなどの実験と比較検証が可能な段階に近づいた。拡張標準模型に位相的な宇宙紐が存在することなどを発見し、これまでになかった新しい展望が開けてきている。
また、ハドロン物理学にも応用されるカイラル運動論に関して、衝突項まで含めた基本的な理論は概ね完成し、衝突項に起因した様々な輸送現象も調べることができたので進捗状況は概ね順調である。
さらに、トポロジカル物性における一つのキーワードであるトポロジカル秩序に対して、離散的な非局所対称性 (高次対称性)の自発的対称性という観点から特徴付ける試みを行っており、いくつかの具体例を用いた考察を進めている。
素粒子論、特に超弦理論と重力理論との関連については、本研究で得られたブラックホール解の安定性をしらべ、漸近AdS時空におけるブラックホールのダイナミクスの研究が進められている。この研究の応用として、多くの時間周期性を持つブラックホール解が見つかっている。また、ホログラフィー原理と離散幾何学をつなぐ研究においては、ニューラルネットワークとの同一視研究が大きく進捗し、新しい視点が得られつつある。

Strategy for Future Research Activity

今後は次のように研究を進める予定である。まず、トポロジカル相における分極については、電気分極はLieb-Schultz-Mattis型定理と深く関連しており、またLieb-Schultz-Mattis定理は量子異常と結びついている。これらの関係を深く考察し、量子異常の観点から量子臨界状態の分類を進めたい。また、ソリトン・ブレーンワールドではゲージ場の局在を説明する必要があり、非摂動効果によって実現するだろうと説明されてきた。我々の模型では定量的な評価が可能であり、この背後には物性系のフェルミオン・エッジモードとの深い関係が存在すると予想される。そこでトポロジーとボゾン・エッジモードの関係を明らかにする。カイラル運動論との関係においては、現実の世界では、カイラル対称性は質量項の存在によって陽に破れている。そのような破れが存在する場合には、カイラル運動論が修正されるはずである。どのようにカイラル運動論が修正され、カイラリティやスピンなどがどのように時間とともに散逸していくか今後調べていきたい。さらに、素粒子論との関係においては、次年度以降も特に場の量子論的手法に基づいたトポロジカル物質系の研究を推進する。特に近年提案されているトポロジカルな近藤効果に対する共形場理論を用いたアプローチ、およびそのQCD 近藤効果に対応する現象などについて重点的に研究を進めていく。さらに、超弦理論と重力理論に関しては、本研究で用いられたブラックホール解の構成方法を応用し、漸近AdS時空中のブラックホールのダイナミクスの終状態を解明する。また、その現象のゲージ理論側の解釈を行い、周期外場下で起きる新規な物性現象の発見につなげる。離散幾何の一般論とホログラフィー原理、トポロジカル物質の接点を引き続き探っていく。

Research Products

• [Int'l Joint Research] National Tsing Hua University/National Taiwan University/National Center for Theoretical Sciences(中国)
• [Int'l Joint Research] Silesian University in Opava/Czech Technical University in Prague(チェコ)
• [Int'l Joint Research] IHES(フランス)
• [Int'l Joint Research] Utrecht University(オランダ)
• [Int'l Joint Research] Max Planck Institute(ドイツ)
• [Int'l Joint Research]
• [Journal Article] Imaging black holes through the AdS/CFT correspondence (2020)
  • Author(s): Hashimoto Koji、Kinoshita Shunichiro、Murata Keiju
  • Journal Title: Physical Review D Volume: 101 Pages: 066018-066018
  • DOI: 10.1103/physrevd.101.066018
  • Peer Reviewed / Open Access
• [Journal Article] Crossover of correlation functions near a quantum impurity in a Tomonaga-Luttinger liquid (2019)
  • Author(s): Lo Chung-Yu、Fukusumi Yoshiki、Oshikawa Masaki、Kao Ying-Jer、Chen Pochung
  • Journal Title: Physical Review B Volume: 99 Pages: 121103-121103
  • DOI: 10.1103/physrevb.99.121103
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Conformal field theory analysis of the QCD Kondo effect (2019)
  • Author(s): Kimura Taro、Ozaki Sho
  • Journal Title: Physical Review D Volume: 99 Pages: 014040-014040
  • DOI: 10.1103/physrevd.99.014040
  • Peer Reviewed / Open Access
• [Journal Article] Black resonators and geons in AdS 5 (2019)
  • Author(s): Ishii Takaaki、Murata Keiju
  • Journal Title: Classical and Quantum Gravity Volume: 36 Pages: 125011-125011
  • DOI: 10.1088/1361-6382/ab1d76
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Nuclear states and spectra in holographic QCD (2019)
  • Author(s): Koji Hashimoto, Yoshinori Matsuo, Takeshi Morita
  • Journal Title: Journal of High Energy Physics Volume: 12 Pages: 001-001
  • DOI: 10.1007/jhep12(2019)001
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] AdS/CFT correspondence as a deep Boltzmann machine (2019)
  • Author(s): Hashimoto Koji
  • Journal Title: Physical Review D Volume: 99 Pages: 106017-106017
  • DOI: 10.1103/physrevd.99.106017
  • Peer Reviewed
• [Journal Article] Localized non-Abelian gauge fields in non-compact extra dimensions (2018)
  • Author(s): Arai Masato、Blaschke Filip、Eto Minoru、Sakai Norisuke
  • Journal Title: Progress of Theoretical and Experimental Physics Volume: 2018 Pages: 1-32
  • DOI: 10.1093/ptep/pty057
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Localization of the Standard Model via the Higgs mechanism and a finite electroweak monopole from non-compact five dimensions (2018)
  • Author(s): Masato Arai, Filip Blaschke, Minoru Eto, Norisuke Sakai
  • Journal Title: Progress of Theoretical and Experimental Physics Volume: 2018 Pages: 1-24
  • DOI: 10.1093/ptep/pty083
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Constraints on two Higgs doublet models from domain walls (2018)
  • Author(s): Eto Minoru、Kurachi Masafumi、Nitta Muneto
  • Journal Title: Phys.Lett. B Volume: 785 Pages: 447-453
  • DOI: 10.1016/j.physletb.2018.09.002
  • Peer Reviewed / Open Access
• [Journal Article] Domain wall and three dimensional duality (2018)
  • Author(s): Eto Minoru, Fujimori Toshiaki, Nitta Muneto
  • Journal Title: JHEP Volume: 2018 Pages: 035-035
  • DOI: 10.1007/jhep06(2018)035
  • Peer Reviewed / Open Access
• [Journal Article] Non-Abelian strings and domain walls in two Higgs doublet models (2018)
  • Author(s): Eto Minoru、Kurachi Masafumi、Nitta Muneto
  • Journal Title: JHEP Volume: 2018 Pages: 195-195
  • DOI: 10.1007/jhep08(2018)195
  • Peer Reviewed / Open Access
• [Journal Article] Non-equilibrium Chiral Magnetic/Vortical Effects in Viscous Fluids (2018)
  • Author(s): Yoshimasa Hidaka and Di-Lun Yang
  • Journal Title: Physical Review D Volume: 98 Pages: 016012-016012
  • DOI: 10.1103/physrevd.98.016012
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Quantum integrability from non-simply laced quiver gauge theory (2018)
  • Author(s): Chen Heng-Yu、Kimura Taro
  • Journal Title: Journal of High Energy Physics Volume: 2018 Pages: 165-165
  • DOI: 10.1007/jhep06(2018)165
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Fractional quiver W-algebras (2018)
  • Author(s): Kimura Taro、Pestun Vasily
  • Journal Title: Letters in Mathematical Physics Volume: 108 Pages: 2425-2451
  • DOI: 10.1007/s11005-018-1087-7
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Floquet superconductor in holography (2018)
  • Author(s): Ishii Takaaki、Murata Keiju
  • Journal Title: Physical Review D Volume: 98 Pages: 1-1
  • DOI: 10.1103/physrevd.98.126005
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Holographic Floquet states II: Floquet condensation of vector mesons in nonequilibrium phase diagram (2018)
  • Author(s): Kinoshita Shunichiro、Murata Keiju、Oka Takashi
  • Journal Title: Journal of High Energy Physics Volume: 2018 Pages: 096-096
  • DOI: 10.1007/jhep06(2018)096
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Phase diagram of QCD chaos in linear sigma models and holography (2018)
  • Author(s): Akutagawa Tetsuya、Hashimoto Koji、Miyazaki Takeshi、Ota Toshihiro
  • Journal Title: Progress of Theoretical and Experimental Physics Volume: 2018
  • DOI: 10.1093/ptep/pty055
  • Peer Reviewed / Open Access
• [Journal Article] Thoughts on Holographic Complexity and its Basis-dependence (2018)
  • Author(s): K. Hashimoto, N. Iizuka, S. Sugishita
  • Journal Title: Physical Review D Volume: 98 Pages: 046002-046002
  • DOI: 10.1103/physrevd.98.046002
  • Peer Reviewed / Open Access
• [Journal Article] Deep Learning and Holographic QCD (2018)
  • Author(s): Koji Hashimoto, Sotaro Sugishita, Akinori Tanaka, Akio Tomiya
  • Journal Title: Physical Review D Volume: 98 Pages: 106014-106014
  • DOI: 10.1103/physrevd.98.106014
  • Peer Reviewed / Open Access / Int'l Joint Research
• [Journal Article] Quiver W-algebras (2018)
  • Author(s): Kimura Taro、Pestun Vasily
  • Journal Title: Letters in Mathematical Physics Volume: 108 Pages: 1351-1381
  • DOI: 10.1007/s11005-018-1072-1
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Quiver elliptic W-algebras (2018)
  • Author(s): Kimura Taro、Pestun Vasily
  • Journal Title: Letters in Mathematical Physics Volume: 108 Pages: 1383-1405
  • DOI: 10.1007/s11005-018-1073-0
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Refined geometric transition and qq-characters (2018)
  • Author(s): Taro Kimura, Hironori Mori, Yuji Sugimoto
  • Journal Title: Journal of High Energy Physics Volume: 2018 Pages: 025-025
  • DOI: 10.1007/jhep01(2018)025
  • Peer Reviewed / Open Access
• [Journal Article] Confinement of half-quantized vortices in coherently coupled Bose-Einstein condensates: Simulating quark confinement in a QCD-like theory (2018)
  • Author(s): Minoru Eto, Muneto Nitta
  • Journal Title: Physical Review A Volume: 97 Pages: 023613-023613
  • DOI: 10.1103/physreva.97.023613
  • Peer Reviewed
• [Journal Article] Nonlinear responses of chiral fluids from kinetic theory (2018)
  • Author(s): Yoshimasa Hidaka, Shi Pu, and Di-Lun Yang
  • Journal Title: Physical Review D Volume: 97 Pages: 016004-016004
  • DOI: 10.1103/physrevd.97.016004
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Deep learning and the AdS/CFT correspondence (2018)
  • Author(s): Koji Hashimoto, Sotaro Sugishita, Akinori Tanaka, Akio Tomiya
  • Journal Title: Physical Review D Volume: 98 Pages: 046019-046019
  • DOI: 10.1103/physrevd.98.046019
  • Peer Reviewed / Open Access
• [Journal Article] Chaos of Wilson loop from string motion near black hole horizon (2018)
  • Author(s): Hashimoto Koji、Murata Keiju、Tanahashi Norihiro
  • Journal Title: Physical Review D Volume: 98 Pages: 086007-086007
  • DOI: 10.1103/physrevd.98.086007
  • Peer Reviewed
• [Journal Article] Fermi/Non-Fermi Mixing in SU(N) Kondo Effect (2017)
  • Author(s): Taro Kimura, Sho Ozaki
  • Journal Title: J. Phys. Soc. Jpn. Volume: 86 Issue: 8 Pages: 084703-084703
  • DOI: 10.7566/jpsj.86.084703
  • NAID: 210000134473
  • ISSN: 0031-9015, 1347-4073
  • Peer Reviewed
• [Journal Article] Grand unified brane world scenario (2017)
  • Author(s): Masato Arai, Filip Blaschke, Minoru Eto, Norisuke Sakai
  • Journal Title: Physical Review D Volume: D96 Pages: 115033-115033
  • DOI: 10.1103/physrevd.96.115033
  • Peer Reviewed / Int'l Joint Research
• [Journal Article] Kinetic Theory and Anomalous Transports in the Presence of Nonabelian Phase-Space Berry Curvatures (2017)
  • Author(s): Tomoya Hayata, Yoshimasa Hidaka
  • Journal Title: Progress of Theoretical and Experimental Physics Volume: 2017 Pages: 097-097
  • DOI: 10.1093/ptep/ptx097
  • Peer Reviewed / Open Access
• [Journal Article] Time evolution of complexity in Abelian gauge theories (2017)
  • Author(s): Hashimoto Koji、Iizuka Norihiro、Sugishita Sotaro
  • Journal Title: Phys. Rev. D Volume: 96 Pages: 126001-126001
  • DOI: 10.1103/physrevd.96.126001
  • Peer Reviewed
• [Presentation] Polarization in Quantum Many-Body Systems (2019)
  • Author(s): Masaki Oshikawa
  • Organizer: Entanglement in Strongly Correlated Systems, Centro de Ciencias de Benasque “Pedro Pascual”
  • Int'l Joint Research / Invited
• [Presentation] Universal gap scaling of finite Ising/Kitaev chains (2019)
  • Author(s): Masaki Oshikawa
  • Organizer: Aspen Winter Conference 2019: New Approaches to Strongly Correlated Quantum Systems, Aspen Center for Physics, Aspen, CO, USA
  • Int'l Joint Research / Invited
• [Presentation] トポロジカルソリトンによるダイナミカルなブレーンワールドの構成 (2019)
  • Author(s): Minoru Eto
  • Organizer: ブレーンとソリトンの量子異常が導くトポロジカル物質（大阪大学）
• [Presentation] Electroweak strings in two Higgs doublet model revisited (2019)
  • Author(s): Minoru Eto
  • Organizer: 日本物理学会 第 74 回年次大会（九州大学）
• [Presentation] Geometry of quiver W-algebra (2019)
  • Author(s): Taro Kimura
  • Organizer: Representation theory, gauge theory and integrable systems
  • Int'l Joint Research / Invited
• [Presentation] A super random partition model (2019)
  • Author(s): Taro Kimura
  • Organizer: Spectra of Random Operators and Related Topics
  • Int'l Joint Research / Invited
• [Presentation] Black resonators and geons in AdS5 (2019)
  • Author(s): Keiju Murata
  • Organizer: 日本物理学会2019年春季大会
• [Presentation] Imaging black holes through AdS/CFT (2019)
  • Author(s): Keiju Murata
  • Organizer: ブレーンとソリトンの量子異常が導くトポロジカル物質
• [Presentation] Black resonators and geons in AdS5 (2019)
  • Author(s): Keiju Murata
  • Organizer: 第20回特異点研究会『特異点と時空、および関連する物理』
• [Presentation] Universal Gap scaling in finite Ising/Kitaev chain (2018)
  • Author(s): Masaki Oshikawa
  • Organizer: Workshop on Recent Developments on Chiral Matter and Topology, National Taiwan University, Taipei, Taiwan2
  • Int'l Joint Research / Invited
• [Presentation] Anomaly and Symmetry-Protected Topological Phases (2018)
  • Author(s): Masaki Oshikawa
  • Organizer: WPC Theoretical Symposium 2018, Wolfgang-Pauli Centre, DESY Hamburg, Germany
  • Int'l Joint Research / Invited
• [Presentation] Polarization in Insulators and Conductors (2018)
  • Author(s): Masaki Oshikawa
  • Organizer: Trends in Theory of Correlated Materials 2018, University of Geneva, Switzerland
  • Int'l Joint Research / Invited
• [Presentation] Polarization in Many-Body Systems (2018)
  • Author(s): Masaki Oshikawa
  • Organizer: Topological phases in condensed matter and cold atom systems, IESC Cargese, France
  • Int'l Joint Research / Invited
• [Presentation] Anomaly and Symmetry-Protected Critical Phases (2018)
  • Author(s): Masaki Oshikawa
  • Organizer: Perspectives in Topological Phases: From Condensed Matter to High-Energy Physics, International Center for Interdisciplinary Science and Education, Quy Nhon, Vietnam
  • Int'l Joint Research / Invited
• [Presentation] Symmetry and Topology in Gapless Critical Phases (2018)
  • Author(s): Masaki Oshikawa
  • Organizer: Symmetry and Topology in Condensed Matter Physics, University of Tokyo, Japan
  • Int'l Joint Research / Invited
• [Presentation] Polarization in Quantum Many-Body Systems (2018)
  • Author(s): Masaki Oshikawa
  • Organizer: Topological phases of matter: from the quantum Hall effect to spin liquids, IPhT CEA Saclay
  • Int'l Joint Research / Invited
• [Presentation] Gauge Invariance and Stability of π-flux Critical Phases (2018)
  • Author(s): Masaki Oshikawa
  • Organizer: 673rd Wilhelm und Else Heraeus-Seminar “Trends in Quantum Magnetism”, Physikzentrum Bad Honnef, Germany
  • Int'l Joint Research / Invited
• [Presentation] Polarization in Quantum Many-Body Systems (2018)
  • Author(s): Masaki Oshikawa
  • Organizer: “Quantum Paths” Programme, Erwin-Schrodinger Institute, Vienna, Austria
  • Int'l Joint Research / Invited
• [Presentation] Localization of the Standard Model via Higgs mechanism and a finite electroweak monopole from non-compact five dimensions (2018)
  • Author(s): Minoru Eto
  • Organizer: Corfu summer institute: Workshop on the Standard Model and Beyond
  • Int'l Joint Research
• [Presentation] Localization of the Standard Model via Higgs mechanism on domain walls (2018)
  • Author(s): Minoru Eto
  • Organizer: Miami 2018
  • Int'l Joint Research
• [Presentation] トポロジカルソリトンによるダイナミカルなブレーンワールドの構成 (2018)
  • Author(s): Minoru Eto
  • Organizer: 素粒子物理学の進展2018（京都大学基礎物理学研究所）
  • Invited
• [Presentation] Chiral kinetic theory with quark mass (2018)
  • Author(s): 日高義将
  • Organizer: 日本物理学会第74回年次大会
• [Presentation] Particle Productions from Chiral Matter (2018)
  • Author(s): Yoshimasa Hidaka
  • Organizer: Workshop on Recent Development in Chiral Matter and Topology, National Taiwan University, Taipei, Taiwan
  • Int'l Joint Research / Invited
• [Presentation] Chiral kinetic theory and magnetic effect (2018)
  • Author(s): Yoshimasa Hidaka
  • Organizer: The 7th Asian Triangle Heavy-Ion Conference, University of Science and Technology of China, Hefei, AnHui, China
  • Int'l Joint Research / Invited
• [Presentation] Virtual photon polarization in the presence of vorticity (2018)
  • Author(s): Yoshimasa Hidaka
  • Organizer: 5th Joint Meeting of the APS Division of Nuclear Physics and the Physical Society of Japan, Hilton Waikoloa Village Waikoloa, HI, USA
  • Int'l Joint Research
• [Presentation] Introduction to W-algebras (2018)
  • Author(s): Taro Kimura
  • Organizer: Introduction to W-algebras
  • Invited
• [Presentation] Quantum algebras from quiver gauge theory (2018)
  • Author(s): Taro Kimura
  • Organizer: Geometric Correspondences of Gauge Theories
  • Int'l Joint Research / Invited
• [Presentation] Topological order is higher-form SSB (2018)
  • Author(s): Taro Kimura
  • Organizer: Progress in the Mathematics of Topological States of Matter
  • Int'l Joint Research / Invited
• [Presentation] Imaging black holes through AdS/CFT (2018)
  • Author(s): Keiju Murata
  • Organizer: International Workshop on "Theoretical Particle Physics 2018"
  • Int'l Joint Research
• [Presentation] Imaging black holes through AdS/CFT (2018)
  • Author(s): Keiju Murata
  • Organizer: Dynamics in Strong Gravity Universe
  • Int'l Joint Research
• [Presentation] Holographic Floquet state ~Oscillatory Electric Field in Holography~ (2018)
  • Author(s): Keiju Murata
  • Organizer: Holography and Extreme Chromodynamics
  • Int'l Joint Research
• [Presentation] Oscillatory Electric Field in Holography (2018)
  • Author(s): Keiju Murata
  • Organizer: 15th workshop on Non-Perturbative QCD
  • Int'l Joint Research / Invited
• [Presentation] Floquet superconductor in holography (2018)
  • Author(s): Keiju Murata
  • Organizer: International Molecule Program on Floquet Theory : Fundamentals and Applications
  • Int'l Joint Research
• [Presentation] ADS/CFT in time-dependent external field (2018)
  • Author(s): Koji Hashimoto
  • Organizer: International Molecule Program on Floquet Theory Fundamentals and Applications
  • Int'l Joint Research / Invited
• [Presentation] 素粒子の質量について (2018)
  • Author(s): 橋本幸士
  • Organizer: 日本質量分析学会
  • Invited
• [Presentation] Deep Learning and AdS/CFT (2018)
  • Author(s): Koji Hashimoto
  • Organizer: Deep Learning and physics 2018
  • Invited
• [Presentation] Deep Learning and AdS/CFT (2018)
  • Author(s): Koji Hashimoto
  • Organizer: 15th Workshop on Non-Perturbative Quantum Chromodynamics, Institut d'Astrophysique de Paris
  • Int'l Joint Research / Invited
• [Presentation] Deep Learning and AdS/CFT (2018)
  • Author(s): Koji Hashimoto
  • Organizer: Tsinghua Workshop on Machine Learning in Geometry and Physics 2018, Tsinghua Sanya International Mathematics Forum, China
  • Int'l Joint Research / Invited
• [Presentation] Deep Learning and holographic QCD (2018)
  • Author(s): Koji Hashimoto
  • Organizer: Strings and Fields 2018
  • Int'l Joint Research
• [Presentation] Deep Learning and holographic QCD (2018)
  • Author(s): Koji Hashimoto
  • Organizer: APCTP focus week “Holography and Geometry of Quantum Entanglement” Hanyang University, Korea
  • Int'l Joint Research / Invited
• [Presentation] Deep Learning and AdS/CFT (2018)
  • Author(s): Koji Hashimoto
  • Organizer: Quantum Gravity meets Lattice QFT, ECT, Trento, Italy
  • Int'l Joint Research / Invited
• [Presentation] 超弦理論における時空創発と深層学習 (2018)
  • Author(s): 橋本幸士
  • Organizer: 岡数学研究所・第１７回岡シンポジウム
  • Invited
• [Presentation] Deep Learning and holographic QCD (2018)
  • Author(s): Koji Hashimoto
  • Organizer: Workshop “Machine learning landscape”, International Centre for theoretical physics in Trieste, Italy
• [Presentation] Multiple functions in Quantum Field Theory (2018)
  • Author(s): T. Kimura
  • Organizer: 多重三角関数とその一般化/Multiple trigonometric functions and their generalizations
  • Invited
• [Presentation] Quiver gauge theory and quiver W-algebra (2018)
  • Author(s): T. Kimura
  • Organizer: 日本数学会2018年度年会/MSJ Spring Meeting 2018
  • Invited
• [Presentation] Fractional quiver gauge theory (2018)
  • Author(s): T. Kimura
  • Organizer: Localization Techniques in Quantum Field Theories
  • Int'l Joint Research / Invited
• [Presentation] 2ヒッグスダブレット模型における非アーベリアン宇宙紐1：解の構成と性質 (2018)
  • Author(s): Minoru Eto
  • Organizer: 日本物理学会第73回年次大会
• [Presentation] Nonequilibrium field theory and symmetry (2018)
  • Author(s): Yoshimasa Hidaka
  • Organizer: RIKEN-Osaka-OIST Joint Workshop 2018
• [Presentation] Symmetry-protected critical phases and global anomaly (2018)
  • Author(s): Masaki Oshikawa
  • Organizer: Croucher Advanced Institute Topology in Condensed Matter and High-Energy Physics
  • Int'l Joint Research / Invited
• [Presentation] 「トポロジカル相としての量子スピン液体とキタエフ模型」 (2018)
  • Author(s): 押川正毅
  • Organizer: 日本物理学会第73回年次大会シンポジウム「キタエフスピン液体とマヨラナ粒子：理論と実験を両輪とした最近の発展と展望」
  • Invited
• [Presentation] Deep learning, black holes and chaos (2018)
  • Author(s): Koji Hashimoto
  • Organizer: RIKEN-Osaka-OIST Joint Workshop 2018
  • Int'l Joint Research / Invited
• [Presentation] 深層学習とAdS/CFT (2018)
  • Author(s): 橋本幸士
  • Organizer: 日本物理学会第73回年次大会
• [Presentation] Non-simply-laced quiver gauge theory from Omega-background (2017)
  • Author(s): T. Kimura
  • Organizer: Strings and Fields 2017
  • Int'l Joint Research
• [Presentation] Double quantization of Seiberg-Witten geometry and quiver W-algebras (2017)
  • Author(s): T. Kimura
  • Organizer: East Asia Joint Workshop on Fields and Strings 2017
  • Int'l Joint Research
• [Presentation] Geometric Higgs Mechanism and Soliton World Scenario (2017)
  • Author(s): Minoru Eto
  • Organizer: Topological Solitons, Nonperturbative Gauge Dynamics and Confinement
  • Int'l Joint Research / Invited
• [Presentation] GUT and Brane world on domain walls (2017)
  • Author(s): Minoru Eto
  • Organizer: Workshop on Solitons, Gauge Fields, and the Integrability: Methods and Applications
  • Int'l Joint Research / Invited
• [Presentation] Localization of gauge fields on topological defects (2017)
  • Author(s): Minoru Eto
  • Organizer: Miami 2017: A topical conference on elementary particles, astrophysics, and cosmology
  • Int'l Joint Research
• [Presentation] Chiral kinetic equation with a collision term and anomalous transport from quantum field theory (2017)
  • Author(s): Yoshimasa Hidaka
  • Organizer: Phases of Quantum Chromodynamics (QCD) and Beam Energy Scan Program with Heavy Ion Collisions
  • Int'l Joint Research / Invited
• [Presentation] 非平衡場の理論と対称性 (2017)
  • Author(s): Yoshimasa Hidaka
  • Organizer: 非平衡物理の最前線－素粒子・宇宙から物性まで－
• [Presentation] Orbital Angular Momentum and Current Distribution in Two Dimensional Chiral Superfluids (2017)
  • Author(s): Masaki Oshikawa
  • Organizer: NORDITA Workshop Multicomponent and Strongly Correlated Superconductors
  • Int'l Joint Research / Invited
• [Presentation] Ground state of the S=1/2 Kagome antiferromagnet (2017)
  • Author(s): Masaki Oshikawa
  • Organizer: Junjiro Kanamori Memorial International Symposium ― New Horizon of Magnetism ―-
  • Int'l Joint Research / Invited
• [Presentation] 「Haldane現象からの理論的展開」 (2017)
  • Author(s): 押川正毅
  • Organizer: 日本物理学会2017年秋季大会シンポジウム「Haldane現象とその展開」
  • Invited
• [Presentation] Quantum information and black hole (2017)
  • Author(s): Koji Hashimoto
  • Organizer: APCTP focus week “”Geometry and holography for quantum criticality”
  • Int'l Joint Research
• [Presentation] 場の理論のカオスとブラックホール (2017)
  • Author(s): 橋本幸士
  • Organizer: 京都大学基礎物理学研究所研究会「熱場の量子論」
  • Invited
• [Presentation] カオス、クォーク、ブラックホール-AdS/CFT対応による新たな創発時空の特徴づけについて (2017)
  • Author(s): 橋本幸士
  • Organizer: 日本物理学会2017年秋季大会
  • Invited
• [Presentation] Complexity and AdS/CFT: quantum othello game (2017)
  • Author(s): Koji Hashimoto
  • Organizer: NCTS (Taiwan national center for theoretical sciences) annual meeting
  • Int'l Joint Research / Invited