Basic Information

Affiliated programs (koza)

• Graduate School of Science, 物理学・宇宙物理学専攻 基礎物理学講座, 准教授

Academic Degree

• 修士（理学）(東京大学)
• 博士（理学）(東京大学)

ID,URL

• J-Global ID

  200901087707123113

researchmap URL

• https://researchmap.jp/read0198496

Research

Research Topics, Overview of the research

• Research Topics

  States of matter in low-dimensional strongly-correlated systems and quantum magnets, topological order in condensed matter systems, quantum entanglement

Research Areas

• Natural sciences, Mathematical physics and basic theory

Papers

• Emergent Spin-Gapped Magnetization Plateaus in a Spin- 1/2 Perfect Kagome Antiferromagnet

  S. Suetsugu; T. Asaba; Y. Kasahara; Y. Kohsaka; K. Totsuka; B. Li; Y. Zhao; Y. Li; M. Tokunaga; Y. Matsuda

  Physical Review Letters, 28 May 2024

  
• Electric and magnetic properties of higher-spin Kondo-Heisenberg models at strong coupling

  Riku Masui; Keisuke Totsuka

  Physical Review B, 14 Jul. 2022, Peer-reviewed, Last author

  
• Intrinsic suppression of the topological thermal Hall effect in an exactly solvable quantum magnet

  S. Suetsugu; T. Yokoi; K. Totsuka; T. Ono; I. Tanaka; S. Kasahara; Y. Kasahara; Z. Chengchao; H. Kageyama; Y. Matsuda

  Physical Review B, 14 Jan. 2022, Peer-reviewed

  
• Abelian SU(N)_1 chiral spin liquids on the square lattice

  Ji-Yao Chen; Jheng-Wei Li; Pierre Nataf; Sylvain Capponi; Matthieu Mambrini; Keisuke Totsuka; Hong-Hao Tu; Andreas Weichselbaum; Jan von Delft; Didier Poilblanc

  Physical Review B, 03 Dec. 2021, Peer-reviewed

  
• 16aDC-8 Magnetization plateaus of an easy-axis Kagome antiferromagnet with extended interactions

  Plat Xavier; Alet Fabien; Capponi Sylvain; Totsuka Keisuke

  Meeting Abstracts of the Physical Society of Japan, 2015

  
• 17aCQ-12 Entanglement of Majorana Fermions in Spatially Periodic Modulation

  Ohta Takumi; Totsuka Keisuke

  Meeting Abstracts of the Physical Society of Japan, 2015

  
• 21aXH-2 Observation of a Spin Gap in Two-Dimensional S=1/2 Square Lattice (CuCl)LaNb_2O_7

  Yasuda J.; Ajiro Y.; Yoshimura K.; Kageyama H.; Oba N.; Kitano T.; Baba Y.; Narumi Y.; Hagiwara M.; Kindo K.; Totsuka K.

  Meeting Abstracts of the Physical Society of Japan, 2005, Peer-reviewed

  
• 17pPSA-25 Construction of topological phases with 2d CFTs and Wilson lines

  Imamura Yukihisa; Totsuka Keisuke

  Meeting Abstracts of the Physical Society of Japan, 2015

  
• Symmetry-protected topological phases in a two-leg SU(N) spin ladder with unequal spins

  S. Capponi; P. Fromholz; P. Lecheminant; K. Totsuka

  Physical Review B, 12 May 2020, Peer-reviewed

  
• New Surprises from “Bamboo Baskets”

  Keisuke Totsuka

  JPSJ News and Comments, 24 Apr. 2020, Peer-reviewed

  
• From coupled-wire construction of quantum Hall states to wave functions and hydrodynamics

  Y. Imamura; K. Totsuka; T.H. Hansson

  Physical Review B, Sep. 2019, Peer-reviewed, Corresponding author

  
• Non-Abelian Aharonov–Casher Phase Factor in Mesoscopic Systems

  Yshai Avishai; Keisuke Totsuka; Naoto Nagaosa

  Journal of the Physical Society of Japan, 15 Aug. 2019, Peer-reviewed

  
• Haldane phases with ultracold fermionic atoms in double-well optical lattices

  P. Fromholz; S. Capponi; P. Lecheminant; D. Papoular; K. Totsuka

  Physical Review B, Feb. 2019, Peer-reviewed

  
• Density-Matrix Renormalization Group Study of Kitaev-Heisenberg Model on a Triangular Lattice

  Kazuya Shinjo; Shigetoshi Sota; Seiji Yunoki; Keisuke Totsuka; Takami Tohyama

  JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, Nov. 2016, Peer-reviewed

  
• Topological Quantum Phase Transitions in a Majorana Chain with Spatial Modulation

  Takumi Ohta; Keisuke Totsuka

  JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, Jul. 2016, Peer-reviewed

  
• Phases of one-dimensional SU(N) cold atomic Fermi gases-From molecular Luttinger liquids to topological phases

  S. Capponi; P. Lecheminant; K. Totsuka

  ANNALS OF PHYSICS, Apr. 2016, Peer-reviewed

  
• Topological and dynamical properties of a generalized cluster model in one dimension

  Takumi Ohta; Shu Tanaka; Ippei Danshita; Keisuke Totsuka

  PHYSICAL REVIEW B, Apr. 2016, Peer-reviewed

  
• Dynamics of entanglement in a Majorana chain

  Ohta T.; Totsuka K.

  Meeting Abstracts of the Physical Society of Japan, 2016

  
• Magnetization plateaus of an easy-axis kagome antiferromagnet with extended interactions

  X. Plat; F. Alet; S. Capponi; K. Totsuka

  Physical Review B - Condensed Matter and Materials Physics, 03 Nov. 2015, Peer-reviewed

  
• Magnetic excitations in an S=1/2 diamond-shaped tetramer compound Cu2PO4OH

  M. Matsuda; S. E. Dissanayake; D. L. Abernathy; K. Totsuka; A. A. Belik

  PHYSICAL REVIEW B, Nov. 2015, Peer-reviewed

  
• Magnetization plateaus of an easy-axis kagome antiferromagnet with extended interactions

  X. Plat; F. Alet; S. Capponi; K. Totsuka

  PHYSICAL REVIEW B, Nov. 2015, Peer-reviewed

  
• Phase Diagram and Sweep Dynamics of a One-Dimensional Generalized Cluster Model

  Takumi Ohta; Shu Tanaka; Ippei Danshita; Keisuke Totsuka

  JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, Jun. 2015, Peer-reviewed

  
• Symmetry-protected topological order in magnetization plateau states of quantum spin chains

  Shintaro Takayoshi; Keisuke Totsuka; Akihiro Tanaka

  PHYSICAL REVIEW B, Apr. 2015, Peer-reviewed

  
• Phase diagrams of one-dimensional half-filled two-orbital SU(N) cold fermion systems

  V. Bois; S. Capponi; P. Lecheminant; M. Moliner; K. Totsuka

  Physical Review B - Condensed Matter and Materials Physics, 23 Feb. 2015, Peer-reviewed

  
• Phase diagrams of one-dimensional half-filled two-orbital SU(N) cold fermion systems

  V. Bois; S. Capponi; P. Lecheminant; M. Moliner; K. Totsuka

  PHYSICAL REVIEW B, Feb. 2015, Peer-reviewed

  
• 22pPSB-7 Time evolution of entanglement in one-dimensional cluster Ising model after critical sweep

  Ohta T.; Totsuka K.

  Meeting Abstracts of the Physical Society of Japan, 2015

  
• 22pPSB-20 Phase Diagram of Stacked Triangular Antiferromagnets with Competing Interactions

  Tamura Ryo; Tanaka Shu; Tanimoto Kazuhiko; Totsuka Keisuke

  Meeting Abstracts of the Physical Society of Japan, 2015

  
• 21aAR-3 Quantum phase transition between SU(4) VBS phase and dimer phase

  Tanimoto K.; Totsuka K.

  Meeting Abstracts of the Physical Society of Japan, 2015

  
• 21pAR-6 Field theories of symmetry protected topological phases in magnetization plateaux

  Takayoshi Shintaro; Totsuka Keisuke; Tanaka Akihiro

  Meeting Abstracts of the Physical Society of Japan, 2015, Peer-reviewed

  
• Topological many-body states in quantum antiferromagnets via fuzzy supergeometry

  Kazuki Hasebe; Keisuke Totsuka

  Symmetry, Jun. 2013, Peer-reviewed

  
• Symmetry-protected topological phases of alkaline-earth cold fermionic atoms in one dimension

  H. Nonne; M. Moliner; S. Capponi; P. Lecheminant; K. Totsuka

  EPL, May 2013, Peer-reviewed

  
• Quantum entanglement and topological order in hole-doped valence-bond solid states

  Kazuki Hasebe; Keisuke Totsuka

  PHYSICAL REVIEW B, Jan. 2013, Peer-reviewed

  
• Semiclassical approach to competing orders in a two-leg spin ladder with ring exchange

  K. Totsuka; P. Lecheminant; S. Capponi

  Physical Review B - Condensed Matter and Materials Physics, 30 Jul. 2012, Peer-reviewed

  
• Semiclassical approach to competing orders in a two-leg spin ladder with ring exchange

  K. Totsuka; P. Lecheminant; S. Capponi

  PHYSICAL REVIEW B, Jul. 2012, Peer-reviewed

  
• SUPERSYMMETRIC VALENCE-BOND SOLID MODELS - HIDDEN ORDER AND DYNAMICS

  Keisuke Totsuka; Kazuki Hasebe

  FRONTIERS IN QUANTUM INFORMATION RESEARCH: DECOHERENCE, ENTANGLEMENT, ENTROPY, MPS AND DMRG, 2012, Peer-reviewed

  
• Geometric phases in magnetization plateaus –Possible spin-liquid in high magnetic field

  Keisuke Totsuka

  “New Development of Statistical Physics,” University of Tokyo, Tokyo, Japan, December 2012., 2012, Peer-reviewed

  
• Featureless spin liquid phases in high magnetic field

  Keisuke Totsuka

  “Theory of Quantum Gases and Quantum Coherence,” École Normale Supérieure, Lyon, France, June 2012., 2012, Peer-reviewed

  
• Hidden order and dynamics in supersymmetric valence-bond solid states: Super-matrix product state formalism

  Kazuki Hasebe; Keisuke Totsuka

  Physical Review B - Condensed Matter and Materials Physics, 15 Sep. 2011, Peer-reviewed

  
• Hidden order and dynamics in supersymmetric valence-bond solid states: Super-matrix product state formalism

  Kazuki Hasebe; Keisuke Totsuka

  PHYSICAL REVIEW B, Sep. 2011, Peer-reviewed

  
• Effect of Dzyaloshinskii-Moriya interactions on the phase diagram and magnetic excitations of SrCu2(BO3)2

  Judit Romhányi; Keisuke Totsuka; Karlo Penc

  Physical Review B - Condensed Matter and Materials Physics, 26 Jan. 2011, Peer-reviewed

  
• Spin-liquid plateaus in frustrated spin systems

  Keisuke Totsuka

  “Novel Quantum States in Condensed Matter” YITP, Kyoto, Japan, November 2011., 2011, Peer-reviewed

  
• Extended quantum dimer model and novel valence-bond phases

  Kouki Nakata; Keisuke Totsuka

  JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT, Jan. 2011, Peer-reviewed

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• Effect of Dzyaloshinskii-Moriya interactions on the phase diagram and magnetic excitations of SrCu2(BO3)(2)

  Judit Romhanyi; Keisuke Totsuka; Karlo Penc

  PHYSICAL REVIEW B, Jan. 2011, Peer-reviewed

  
• Supersolid phase of three-dimensional spin- and hardcore-boson models

  Hiroaki T. Ueda; Keisuke Totsuka

  Physical Review B - Condensed Matter and Materials Physics, 25 Feb. 2010, Peer-reviewed

  
• Supersolid phase of three-dimensional spin- and hardcore-boson models

  Hiroaki T. Ueda; Keisuke Totsuka

  PHYSICAL REVIEW B, Feb. 2010, Peer-reviewed

  
• Dilute-bose-gas approach to ground state phases of 3D quantum helimagnets under high magnetic field

  Ueda, H.T.; Totsuka, K.; Momoi, T.

  Journal of Physics: Conference Series, 2010, Peer-reviewed

  
• Magnon Bose-Einstein condensation and various phases of three-dimensonal quantum helimagnets under high magnetic field

  Hiroaki T. Ueda; Keisuke Totsuka

  PHYSICAL REVIEW B, Jul. 2009, Peer-reviewed

  
• Geometric phases and the magnetization process in quantum antiferromagnets

  Akihiro Tanaka; Keisuke Totsuka; Xiao Hu

  Physical Review B - Condensed Matter and Materials Physics, 17 Feb. 2009, Peer-reviewed

  
• Geometric phases and the magnetization process in quantum antiferromagnets

  Akihiro Tanaka; Keisuke Totsuka; Xiao Hu

  PHYSICAL REVIEW B, Feb. 2009, Peer-reviewed

  
• Ground-state phase diagram and magnetic properties of a tetramerized spin- 1 2 J1 - J2 model: BEC of bound magnons and absence of the transverse magnetization

  Hiroaki T. Ueda; Keisuke Totsuka

  Physical Review B - Condensed Matter and Materials Physics, 26 Dec. 2007, Peer-reviewed

  
• Ground-state phase diagram and magnetic properties of a tetramerized pin-1/2 J(1)-J(2) model: BEC of bound magnons and absence of the transverse magnetization

  Hiroaki T. Ueda; Keisuke Totsuka

  PHYSICAL REVIEW B, Dec. 2007, Peer-reviewed

  
• Spontaneous trimerization in a bilinear-biquadratic S=1 zig-zag chain

  Philippe Corboz; Andreas M. Laeuchli; Keisuke Totsuka; Hirokazu Tsunetsugu

  PHYSICAL REVIEW B, Dec. 2007, Peer-reviewed

  
• A unifying approach to unconventional orders in frustrated spin systems

  K. Totsuka; P. Lecheminant; S. Capponi

  JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, Mar. 2007, Peer-reviewed

  
• The SU(N) self-dual sine-Gordon model and competing orders

  P. Lecheminant; K. Totsuka

  JOURNAL OF STATISTICAL MECHANICS-THEORY AND EXPERIMENT, Dec. 2006, Peer-reviewed

  
• Competing orders and hidden duality symmetries in two-leg spin ladder systems

  P. Lecheminant; K. Totsuka

  PHYSICAL REVIEW B, Dec. 2006, Peer-reviewed

  
• Competing orders and hidden duality symmetries in two-leg spin ladder systems

  P. Lecheminant; K. Totsuka

  Physical Review B - Condensed Matter and Materials Physics, 2006, Peer-reviewed

  
• Anomalous magnetization of two-dimensional S=1/2 frustrated square-lattice antiferromagnet (CuCl)LaNb2O7

  H Kageyama; J Yasuda; T Kitano; K Totsuka; Y Narumi; M Hagiwara; K Kindo; Y Baba; N Oba; Y Ajiro; K Yoshimura

  JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, Dec. 2005, Peer-reviewed

  
• Phases of the generalized two-leg spin ladder: A view from the SU(4) symmetry

  P. Lecheminant; K. Totsuka

  Physical Review B - Condensed Matter and Materials Physics, Jan. 2005, Peer-reviewed

  
• Phases of the generalized two-leg spin ladder: A view from the SU(4) symmetry

  P Lecheminant; K Totsuka

  PHYSICAL REVIEW B, Jan. 2005, Peer-reviewed

  
• Magnetic excitation of orthogonal dimer heisenberg spin system for SrCu2(BO3)(2)

  S Miyahara; K Totsuka; K Ueda

  INTERNATIONAL JOURNAL OF MODERN PHYSICS B, Nov. 2003, Peer-reviewed

  
• Low-lying excitations and magnetization process of coupled tetrahedral systems

  K Totsuka; HJ Mikeska

  PHYSICAL REVIEW B, Aug. 2002, Peer-reviewed

  
• Magnetization process of random quantum spin chains

  K Totsuka

  PHYSICAL REVIEW B, Oct. 2001, Peer-reviewed

  
• The field-induced gap due to four-spin exchange in a spin ladder

  A Nakasu; K Totsuka; Y Hasegawa; K Okamoto; T Sakai

  JOURNAL OF PHYSICS-CONDENSED MATTER, Aug. 2001, Peer-reviewed

  
• Magnetization process of random quantum spin chains

  K. Totsuka

  Physical Review B - Condensed Matter and Materials Physics, 2001, Peer-reviewed

  
• Magnetization plateaux and bound states of the Shastry-Sutherland model for SrCu2(BO3)2

  Momoi, T.; Totsuka, K.

  Canadian Journal of Physics, 2001, Peer-reviewed

  
• Low-lying magnetic excitation of the Shastry-Sutherland model

  K Totsuka; S Miyahara; K Ueda

  PHYSICAL REVIEW LETTERS, Jan. 2001, Peer-reviewed

  
• Effects of anisotropy and randomness on magnetization plateaus

  K Totsuka

  PHYSICA B, Jul. 2000, Peer-reviewed

  
• Magnetization plateaus in two-dimensional spin systems

  T. Momoi; K. Totsuka

  Physica B: Condensed Matter, Jul. 2000, Peer-reviewed

  
• Magnetization plateaus as insulator-superfluid transitions in quantum spin systems

  T Momoi; K Totsuka

  PHYSICAL REVIEW B, Feb. 2000, Peer-reviewed

  
• Magnetization plateaus of the Shastry-Sutherland model for SrCu2(BO3)2: Spin-density wave, supersolid, and bound states

  Momoi, T.; Totsuka, K.

  Physical Review B - Condensed Matter and Materials Physics, 2000, Peer-reviewed

  
• Magnetization plateaus as insulator-superfluid transitions in quantum spin systems

  Momoi, T; Totsuka, K

  Physical Review B, 2000, Peer-reviewed

  
• Novel massive ground states of spin chains in a magnetic field

  K Totsuka

  EUROPEAN PHYSICAL JOURNAL B, Oct. 1998, Peer-reviewed

  
• Magnetization plateau in the S=1/2 Heinsenberg spin chain with next-nearest-neighbor and alternating nearest-neighbor interactions

  K Totsuka

  PHYSICAL REVIEW B, Feb. 1998, Peer-reviewed

  
• Magnetization plateau in th Heinsenberg spin chain with next-nearest-neighbor and alternating nearest-neighbor interactions

  Keisuke Totsuka

  Physical Review B - Condensed Matter and Materials Physics, 1998, Peer-reviewed

  
• Non-classical magnetization process of quantum spin chains

  K Totsuka

  JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, Jan. 1998, Peer-reviewed

  
• Magnetization processes in bond-alternating quantum spin chains

  K Totsuka

  PHYSICS LETTERS A, Mar. 1997, Peer-reviewed

  
• Phase diagram of three-leg spin ladder

  K Totsuka; M Suzuki

  JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, Jul. 1996, Peer-reviewed

  
• THE SPIN-1/2 HEISENBERG SPIN LADDER WITH BOND ALTERNATION

  K TOTSUKA; M SUZUKI

  JOURNAL OF PHYSICS-CONDENSED MATTER, Jul. 1995, Peer-reviewed

  
• ISOTROPIC SPIN-1 CHAINS WITH BOND ALTERNATION - ANALYTIC AND NUMERICAL-STUDIES

  K TOTSUKA; Y NISHIYAMA; N HATANO; M SUZUKI

  JOURNAL OF PHYSICS-CONDENSED MATTER, Jun. 1995, Peer-reviewed

  
• REAL-SPACE RENORMALIZATION-GROUP ANALYSIS OF THE S=2 ANTIFERROMAGNETIC HEISENBERG CHAIN

  Y NISHIYAMA; K TOTSUKA; N HATANO; M SUZUKI

  JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, Feb. 1995, Peer-reviewed

  
• MATRIX FORMALISM FOR THE VBS-TYPE MODELS AND HIDDEN ORDER

  K TOTSUKA; M SUZUKI

  JOURNAL OF PHYSICS-CONDENSED MATTER, Feb. 1995, Peer-reviewed

  
• HIDDEN SYMMETRY-BREAKING IN A GENERALIZED VALENCE-BOND SOLID MODEL

  K TOTSUKA; M SUZUKI

  JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, Oct. 1994, Peer-reviewed

  

Misc.

• Toporogical phase for one dimentional SU(N)fermion model in optical lattice

  Tanimoto K.; Totsulca K.

  Meeting abstracts of the Physical Society of Japan, 26 Aug. 2013

  
• Hidden Order and Dynamiscs of Supersymmetric VBS models(New Development of Numerical Simulations in Low-Dimensional Quantum Systems: From Density Matrix Renormalization Group to Tensor Network Formulations) :

  Hasebe Kazuki; Totsuka Keisuke

  物性研究, 2011

  
• A Geometric Approach to Magnetization Plateaus(Topological Aspects of Solid State Physics) :

  Totsuka Keisuke

  物性研究, 2009

  
• 22aPS-110 The ground state and the emergent supersolid state in magnetization process of spin 1/2 J_1-J_2 model with plaquette structure

  Ueda Hiroaki; Totsuka Keisuke

  Meeting abstracts of the Physical Society of Japan, 21 Aug. 2007

  
• Magnetization Plateaus in Quantum Spin Chains

  Oshikawa Masaki; Totsuka Keisuke; Yamanaka Masanori

  日本物理學會誌, Oct. 1999

  
• Phase diagram of multi-leg ladder models

  Totsuka Keisuke; Suzuki Masuo

  Abstracts of the meeting of the Physical Society of Japan. Sectional meeting, 12 Sep. 1995

  
• 20aQH-5 Magnon BEC and various phases of 3D-helimagnet which consists of frustrated J_1-J_2 chains under high magnetic field

  Ueda Hiroaki; Totsuka Keisuke

  Meeting abstracts of the Physical Society of Japan, 25 Aug. 2008

  
• 2次元スピン系の磁化プラトーにおけるInsulator-Conductor転移描像(基礎物理学研究所短期研究会「量子効果が顕著な役割を果たす磁性現象の新展開」,研究会報告)

  桃井 勉; 戸塚 圭介

  物性研究, 1999

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• 29p-XE-13 Effects of Interactions and Randomness in Quantum Spin Chains

  Totsuka Keisuke

  Meeting abstracts of the Physical Society of Japan, 15 Mar. 1999

  
• Spin-Periels Transiton of an S = 1 Spin Ladder in Mangetic Field

  Okamoto Kiyomi; Totsuka Keisuke; Okazaki Nobuhisa; Sakai Toru

  Meeting abstracts of the Physical Society of Japan, 09 Mar. 2001

  
• Magnetization process in the spin ladder system with four-spin exchange interaction

  Nakasu Atsushi; Totsuka Keisuke; Hasegawa Yasumasa; Sakai Toru

  Meeting abstracts of the Physical Society of Japan, 10 Sep. 2000

  
• Instabilitie in Spin Chains in a Magnetic Field

  TOTSUKA Keisuke

  Meeting abstracts of the Physical Society of Japan, 10 Mar. 1998

  
• 27aR-7 Magnetization plateaus as insulator-conductor transitions in quantum spin systems

  Totsuka Keisuke; Momoi Tsutomu

  Meeting abstracts of the Physical Society of Japan, 03 Sep. 1999

  
• 25aYE-2 Theory of a Magnetization Plateau in S=1/2 Heisenberg Spin Chain with Next-Nearest-Neighbour Intertaction

  Totsuka Keisuke

  Meeting abstracts of the Physical Society of Japan, 03 Sep. 1999

  
• 8a-PS-76 Magnetization Plateau in Bond-Alternating Chain with Next-Nearest-Neighbor Interaction

  Totsuka Keisuke

  Meeting abstracts of the Physical Society of Japan, 16 Sep. 1997

  
• Theory

  Totsuka Keisuke

  Meeting abstracts of the Physical Society of Japan, 10 Mar. 2000

  
• Instabilities in spin systems from renormalization group viewpoint-spin ladders,magnetization plateaus etc.

  TOTSUKA Keisuke

  Meeting abstracts of the Physical Society of Japan, 05 Sep. 1998

  
• 4p-D-14 The S≥1 Heisenberg spin chain with alternating interaction

  Nishiyama Y; Totsuka K; Hatano N; Suzuki M

  Abstracts of the meeting of the Physical Society of Japan. Sectional meeting, 16 Aug. 1994

  
• 26pQK-13 Magnon Bose-Einstein condensation and nematic phase of 3D quantum helimagnets under high magnetic field

  Ueda Hiroaki T.; Totsuka Keisuke; Momoi Tsutomu

  Meeting abstracts of the Physical Society of Japan, 18 Aug. 2009

  
• 21pEA-9 Spin nematic phase emerging in the Heisenberg model on a body-centered-cubic lattice

  Ueda Hiroaki T.; Totsuka Keisuke; Momoi Tsutomu

  Meeting abstracts of the Physical Society of Japan, 01 Mar. 2010

  
• 一次元一般化クラスター模型の臨界性とダイナミクス

  太田卓見; 田中宗; 段下一平; 戸塚圭介

  日本物理学会講演概要集(CD-ROM), 24 Sep. 2015

  
• 7pBF-8 SPT phases in SU(W) ultra-cold atoms in one dimension - their properties and order parameters

  Totsuka Keisuke

  Meeting abstracts of the Physical Society of Japan, 22 Aug. 2014

  
• 8pPSA-8 Entanglement in the random topological phase

  Ohta Takumi; Totsuka Keisuke

  Meeting abstracts of the Physical Society of Japan, 22 Aug. 2014

  
• 7pBF-8 SPT phases in SU(N) ultra-cold atoms in one dimension : their properties and order parameters

  Totsuka Keisuke

  Meeting abstracts of the Physical Society of Japan, 22 Aug. 2014

  
• 28pAK-17 Topological phase and String order for one dimentional two orbital SU (N) fermion model in optical lattice

  Tanimoto K.; Totsuka K.

  Meeting abstracts of the Physical Society of Japan, 05 Mar. 2014

  
• “Symmetry-Protected Topological Orders in 1D - from VBS models to cold fermions,”

  Keisuke Totsuka

  Dept. of Phys., Kyoto University, March 2013, 2013, Peer-reviewed

  
• Bond-operator approach to phase diagram and low-lying excitations of Shastry-Sutherland model

  Keisuke Totsuka

  Autumn Meeting of the Physical Society of Japan’, Osaka Prefectural University, Japan 24 September 2010., 2010, Peer-reviewed

  
• Contractor Renormalization Study of 1Dand 2D Spin Systems with Ring-Exchange Interactions

  Keisuke Totsuka

  Autumn Meeting of the Physical Society of Japan’, Osaka Prefectural University, Japan 25 September 2010., 2010, Peer-reviewed

  
• Hidden order and dynamics of SUSY VBS models

  Keisuke Totsuka

  New Development of Numerical Simulations in Low-Dimensional Quantum Systems”, Kyoto, Japan October 27-29, 2010., 2010, Peer-reviewed

  
• Possible featureless spin liquids at magnetization plateaus

  Keisuke Totsuka

  “Unconventional magnetism in High Fields” (Advanced Study Group 2010), Max-Planck Institute for Physics of Complex Systems, Dresden, Germany 4 June 2010., 2010, Peer-reviewed

  
• Supersymmetric VBS models?hidden order and dynamics

  Keisuke Totsuka

  in “Workshop on Matrix Product State Formulation and Density Matrix Renormalization Group Simulations, Kobe, Japan 12?13 August 2009., 2009, Peer-reviewed

  
• A boson-pairing approach to physics of spin-nematic phases

  Keisuke Totsuka

  Autumn Meeting of the Physical Society of Japan’, Kumamoto University, Japan 26 September 2009., 2009, Peer-reviewed

  
• Possible featureless spin-liquid phases in high magnetic fields

  Keisuke Totsuka

  Topological Order: from QUantum Hall Systems to Magnetic Materials”, Max-Planck Institute for Physics of Complex Systems, Dresden, Germany 29 June?24 July 2009., 2009, Peer-reviewed

  
• Magnetic Structures of Frustrated Magnets in High Magnetic Fields ?an approach from magnon BEC

  Keisuke Totsuka

  in annual meeting of the project “Novel States of Matter Induced by Frustration”, Institute of Solid State Physics, Japan, 7-9 January 2009., 2009, Peer-reviewed

  
• Possible featureless spin liquid states in high magnetic fields ?magnetization plateaus with fractionalized excitations

  Keisuke Totsuka

  in “Frustration and Spin Liquids”, Kobe University, Japan, 22 December 2008., 2008, Peer-reviewed

  
• Z2-gauge theory approach for spin systems in strong magnetic fields and fractionalization

  Keisuke Totsuka

  in Autumn Meeting of the Physical Society of Japan’, Iwate University, Japan, 22 September 2008., 2008, Peer-reviewed

  
• Magnon BEC and Unconventional Quantum Orders

  Keisuke Totsuka

  in “Highly Frustrated Magnetism 2008”, Technical University Brunswick, Germany, 7-12 September 2008., 2008, Peer-reviewed

  
• Geometric approach to magnetization lateaus

  Keisuke Totsuka

  in “Topological Aspects of Solid State Physics,” Institute of Solid State Physics and Yukawa Institute for Theoretical Physics, Japan, 22?27 June 2008., 2008, Peer-reviewed

  
• A unifying approach to competing orders in frustrated magnets ?an approach from effective Hamiltonians

  Keisuke Totsuka

  LPTMS Universit´e Paris Sud Orsay, 20 April 2007, Paris, France., 2007, Peer-reviewed

  
• A unifying approach to competing orders in frustrated magnets ?from ladder to square lattice

  Keisuke Totsuka

  “Interaction and nanostructural effects in low-dimensional systems”, 5-30 November 2007, Kyoto, Japan., 2007, Peer-reviewed

  
• Effects of 4-spin interactions in generalized spin ladders -global phase structure and quantum phase transitions

  K. Totsuka; P. Lecheminant

  "International Symposium on Quantum Spin Systems (QSS04)” Nov.30-Dec.3, 2004, Shonan, Japan., 2004, Peer-reviewed

  
• Competing orders and hidden symmetry in spin ladder systems

  K. Totsuka; P. Lecheminant

  Yukawa International Seminar 2004 ”Physics of Strongly Correlated Electron Systems”, Nov.1- Nov.19, 2004 Kyoto, Japan., 2004, Peer-reviewed

  
• "Realizing symmetry-protected topological phases with SU(N) ultra-cold fermions"

  Keisuke Totsuka

  "Novel Quantum States in Condensed Matter 2014", YITP Kyoto, November 14, 2014

  
• "Symmetry-protected topological Mott insulators of ultra-cold fermions in one dimension"

  Keisuke Totsuka

  Topology and Entanglement in Correlated Quantum Systems, MPIPKS Dresden, August 2, 2014

  
• "Symmetry-protected topological Mott phases of ultra-cold fermions in one dimension"

  Keisuke Totsuka

  New Horizon of Strongly-Correlated Physics, ISSP, July 2, 2014

  
• "Symmetry-protected topological phases of alkaline-earth ultra-cold fermionic atoms in one dimension"

  Keisuke Totsuka

  STATPHYS25, Seoul, July 25, 2013

  
• Realizing topological phases with cold atoms

  Keisuke Totsuka

  YITP workshop "New era of quantum information from the developmemnt in quantum control technologies", July 16, 2015

  
• Spin-liquid magnetization plateaus in high magnetic field

  Keisuke Totsuka

  YITP workshop "Physics of Quantum Spin Systems", November 14, 2012

  

Presentations

• SU(N) Kondo lattice model --ferromagnetism and supersymmetry

  Keisuke Totsuka

  SU(N) physics in condensed matter and cold atoms, 10 May 2022, Invited

  
• Designing topological gauge theories with quantum wires

  Keisuke Totsuka

  Entanglement in Strongly Correlated Systems, 25 Feb. 2021, Invited

  
• Symmetry-protected topological phases with ultra-cold SU(N) fermions

  Keisuke Totsuka

  The Third Asia-Pacific workshop on Quantum Magnetism, 29 Nov. 2019, Invited

  
• Symmetry-protected topological phases with ultra-cold SU(N) fermions

  Keisuke Totsuka

  The Fourth Kyoto-Beijing-Tokyo Workshop on Ultracold Atomic Gases, 02 Oct. 2019, Invited

  
• Bulk properties and fluctuations in coupled-wire construction of Abelian topological phases

  Keisuke Totsuka

  seminar at Technical University Munich, Germany, 10 Jul. 2019, Invited

  
• Lecture on 2D conformal field theories --a survival kit for condensed-matter physicists

  Keisuke Totsuka

  series of lectures at KAIST, Korea, Invited

  
• Hunt for symmetry-protected topological phases in SU(N) ultra-cold fermions in double-well optical lattices

  Keisuke Totsuka

  Variety and universality of bulk-edge correspondence in topological phases: From solid state physics to transdisciplinary concepts (BEC2018X), 12 Dec. 2018, Invited

  
• Hunt for symmetry-protected topological phases in SU(N) ultra-cold fermions in one-dimensional optical lattices

  Keisuke Totsuka

  seminar at National Center for Theoretical Sciences, Taiwan, 14 Nov. 2018, Invited

  
• Emergence of topological gauge theories from coupled arrays of wires

  Keisuke Totsuka

  seminar at Okinawan Institute of Technologies, 11 Oct. 2018, Invited

  
• Symmetry-protected topological phases with broken parity in cold fermions in a double-well optical lattice

  Keisuke Totsuka

  Quantum Magnetism: Frustration, Low-dimensionality, 04 Sep. 2018, Invited

  
• Emergent gauge theories from a coupled array of wires –coupled-wire construction demystified

  Keisuke Totsuka

  Topological phases of matter (TOPMAT18), 03 Jul. 2018, Invited

  
• SU(N) cold fermions in a double-well optical potential

  Keisuke Totsuka

  Topological properties in quantum magnets, 01 Sep. 2017, Invited

  
• OIST lecture on symmetry-protected topological phases

  Keisuke Totsuka

  series of lectures at Okinawan Institute of Technologies

  
• Symmetry-protected topological phases – basic concepts and realization

  Keisuke Totsuka

  International school on topological science and topological matters, 13 Feb. 2017, Invited

  
• Symmetry-protected topological phases of SU(N) cold fermion systems --entanglement, order parameters, and group cohomology

  Keisuke Totsuka

  seminar at Okinawan Institute of Technologies, 08 Nov. 2016, Invited

  
• Topological phases of SU(N) cold fermion systems

  Keisuke Totsuka

  Physics of bulk-edge correspon- dence and its universality, 29 Sep. 2016, Invited

  
• Topological phases of quantum magnets at high fields

  Keisuke Totsuka

  Entanglement in strongly correlated systems, 23 Feb. 2016

  
• Quantum spin-liquid plateaus in Kagomé-lattice antiferromagnet

  戸塚圭介

  千葉大学セミナー, 23 Oct. 2015

  
• Realizing symmetry-protected topological phases with SU(N) ultra-cold fermions

  Keisuke Totsuka

  Institute of Solid State Physics, 05 Dec. 2014, Invited

  
• "Mott insulating phases of ultra-cold alkaline-earth fermions in one dimension"

  Keisuke Totsuka

  Max-Planck Institute for Solid State Physics, 30 Jul. 2014, Invited

  
• "Symmetry-protected topological Mott insulators of ultra-cold fermions in one dimension"

  Keisuke Totsuka

  Yukawa Institute for Theoretical Physics, 12 Apr. 2014

  
• “Symmetry-Protected Topological Orders in 1D - from VBS models to cold fermions,”

  Keisuke Totsuka

  Dept. of Phys., Kyoto University, March 2013, 18 Mar. 2013, Invited

  
• "Symmetry-Protected Topological Orders in 1D- from cold atoms to supersymmetric VBS

  Keisuke Totsuka

  ITP, Leibntz University Hannover, 12 Mar. 2013, Invited

  
• "SUSY VBS models- dynamics, topological order, etc."

  Keisuke Totsuka

  IRSAMC, Toulouse University, 25 May 2012

  
• "Possible featureless spin liquid states in high magnetic field"

  Keisuke Totsuka

  IRSAMC Toulouse University, 22 Jun. 2010, Invited

  
• "Topologically-ordered spin liquids in high magnetic fields"

  Keisuke Totsuka

  Osaka University, 17 Jul. 2009, Invited

  
• "Possible featureless spin liquid states in high magnetic fields-magnetization plateaus revisited"

  Keisuke Totsuka

  University Paris VI, 19 Mar. 2009, Invited

  
• "Magnetization Plateaus Revisited"

  Keisuke Totsuka

  RIKEN, 19 Feb. 2009, Invited

  
• "A unifying approach to unconventional orders in frustrated magnets"

  Keisuke Totsuka

  University Paris Sud, 20 Apr. 2007

  
• A unifying approach to competing orders in frustrated magnets ?an approach from effective Hamiltonians

  Keisuke Totsuka

  LPTMS Universit´e Paris Sud Orsay, 20 April 2007, Paris, France., 20 Apr. 2007, Invited

  
• "A unifying approach to unconventional orders in frustrated magnets -an approach from effective Hamiltonians"

  Keisuke Totsuka

  Osaka University, January 19, 2007

  
• "Magnetization Plateaus Revisited -an approach from geometrical viewpoint"

  Keisuke Totsuka

  Tohoku Univeristy, July 24, 2008

  
• "Geomatric Approach to Magnetization Plateaus"

  Keisuke Totsuka

  IPhT, SEA Saclay, December 7, 2010

  

External funds: Kakenhi

• Topology and quantum phase transitions in strongly correlated open quantum systems

  Grant-in-Aid for Scientific Research (C)

  Basic Section 13010:Mathematical physics and fundamental theory of condensed matter physics-related

  Kyoto University

  戸塚 圭介

  From 01 Apr. 2021, To 31 Mar. 2025, Granted

  SU(N)対称性;近藤格子模型;冷却原子気体;量子異常;SPT相;量子開放系;測定型量子計算;トポロジカル相;開放量子多体系;開放量子系;量子相転移;トポロジー

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21K03401/
• Microscopic construction of strongly-correlated topological phases and the study on thier phase structures

  Grant-in-Aid for Scientific Research (C)

  Basic Section 13010:Mathematical physics and fundamental theory of condensed matter physics-related

  Kyoto University

  Keisuke Totsuka

  From 01 Apr. 2018, To 31 Mar. 2022, Project Closed

  トポロジカル相;冷却原子気体;量子細線;カイラルスピン液体;熱ホール効果;トリプロン;分数量子ホール効果;対称性に護られたトポロジカル相;coupled-wire構成法;強相関系;量子ホール効果;強相関;トポロジカル秩序;ラッティンジャー液体

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18K03455/
• Study on quantum entanglement and emergent degrees of freedom in strongly-correlated topological phases

  Grant-in-Aid for Scientific Research (C)

  Kyoto University

  Keisuke Totsuka

  From 01 Apr. 2015, To 31 Mar. 2018, Project Closed

  トポロジカル相;冷却原子気体;エンタングルメント;SU(N)対称性;分数量子ホール効果;SU(N)冷却原子気体;磁化プラトー

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-15K05211/
• Study of strongly correlated topological phases with quantum entanglement

  Grant-in-Aid for Scientific Research (C)

  Kyoto University

  Keisuke TOTSUKA

  From 01 Apr. 2012, To 31 Mar. 2015, Project Closed

  トポロジカル相;スピン液体;エンタングルメント;冷却原子気体;磁化プラトー;国際研究者交流（フランス）;冷却原子系;ストリングオーダーパラメータ;トポロジカル秩序;強相関

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-24540402/
• Unifying and Geometric Theory for Competing Orders in Low-Dimensional Magnets and Bose Systems

  Grant-in-Aid for Scientific Research (C)

  Kyoto University

  Keisuke TOTSUKA

  From 01 Apr. 2008, To 31 Mar. 2011, Project Closed

  フラストレーション;スピン液体;スピンネマティック;多体交換相互作用;トポロジカル秩序;磁化プラトー;直交ダイマー模型;競合量子相;スピンネマティック状態;ベリー位相;量子らせん磁性体;らせん磁性体

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20540375/
• Unifying Approaches to Novel Quantum Phases in Low-Dimensional Magnets

  Grant-in-Aid for Scientific Research (C)

  Kyoto University

  Keisuke TOTSUKA

  From 01 Apr. 2006, To 31 Mar. 2008, Project Closed

  低次元量子スピン系;多スピン交換相互作用;カイラル秩序;ネマティック秩序;スピンのBose-Einstein凝縮;フラストレーション系;量子スピン系;多体交換相互作用;マグノンBEC;スピンネマティック秩序;競合秩序;量子相転移;sine-Gordon模型;contractor renormaliz, Low-dimensional quantum spin systems;Multi-spin exchange interactions;Chiral orders;spin-nematic orders;Bse-Einstein condensation of spins

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18540372/
• 幾何学的フラストレーションの誘起する量子相転移と新奇な基底状態

  Grant-in-Aid for Young Scientists (B)

  Kyoto University

  戸塚 圭介

  From 01 Apr. 2004, To 31 Mar. 2006, Project Closed

  幾何学的フラストレーション;多体交換相互作用;量子相転移;ボゾン化;スピンギャップ系;フラストレーション;多重臨界点

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-16740222/
• 幾何学的にフラストレートした系の量子相転移と輸送現象

  Grant-in-Aid for Young Scientists (B)

  Kyoto University;Aoyama Gakuin University

  戸塚 圭介

  From 01 Apr. 2002, To 31 Mar. 2004, Project Closed

  量子磁性;低次元;畿何学的フラストレーション;カイラル秩序;時間反転対称性;場の理論;幾何学的フラストレーション;量子相転移;数値計算

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-14740240/
• 多スピン交換相互作用を含む系の理論的研究

  Grant-in-Aid for Scientific Research (C)

  AOYAMA GAKUIN UNIVERSITY

  Ken KUBO

  From 01 Apr. 2002, To 31 Mar. 2004, Project Closed

  多体交換相互作用;スカラーカイラリティー;双対性;ヘリウム3薄膜;梯子スピン系;磁化プラトー;3角格子スピン系;フラストレーション;拡張ハバード模型;ストライプ融解相転移;希薄磁性半導体, multiple spin exchange;scalar chirality;duality relation;helium3 solid layer;ladder spin system;magnetization plateau;triangular lattice;frustration

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-14540362/

External funds: others

• Exotic Quantum Matter in Multicomponent Systems

  Centre National de la Recherche Scientifique (CNRS), International Research Project

  From 01 Sep. 2022, To 31 Aug. 2026

  Philippe Lecheminant, Keisuke Totsuka
• low-dimensional topological phases

  京都大学コアステージバックアップ研究費

  From 01 Apr. 2011, To 31 Mar. 2012

  戸塚圭介
• Ultra-cold fermions with emergent SU(N) symmetry

  International projects of scientific coorperation

  From 01 Jan. 2015, To 31 Dec. 2017

  P. Lecheminant

Education

Teaching subject(s)

• From 01 Apr. 2024, To 31 Mar. 2025

  Advanced Theoretical Physics I-2

  2202, Fall, Graduate School of Science, 2
• From 01 Apr. 2024, To 31 Mar. 2025

  Seminar on Physics of Matter : Condensed Matter Physics B

  2080, Fall, Graduate School of Science, 2
• From 01 Apr. 2024, To 31 Mar. 2025

  Seminar on Physics of Matter : Condensed Matter Physics A

  2079, Spring, Graduate School of Science, 2
• From 01 Apr. 2024, To 31 Mar. 2025

  Advanced Theoretical Physics I-1

  2201, Fall, Graduate School of Science, 2
• From 01 Apr. 2024, To 31 Mar. 2025

  Seminar on Physics of Matter : Condensed Matter Physics D

  2082, Fall, Graduate School of Science, 2
• From 01 Apr. 2024, To 31 Mar. 2025

  Seminar on Physics of Matter : Condensed Matter Physics C

  2081, Spring, Graduate School of Science, 2
• From 01 Apr. 2023, To 31 Mar. 2024

  Prospects of Interdisciplinary Photonics and Electronics

  X001, Spring, Graduate School of Engineering, 2
• From 01 Apr. 2023, To 31 Mar. 2024

  Physics WISE Program Special Lecture

  4515, Spring, Graduate School of Science, 1
• From 01 Apr. 2023, To 31 Mar. 2024

  Seminar on Physics of Matter : Condensed Matter Physics A

  2079, Spring, Graduate School of Science, 2
• From 01 Apr. 2023, To 31 Mar. 2024

  Seminar on Physics of Matter : Condensed Matter Physics B

  2080, Fall, Graduate School of Science, 2
• From 01 Apr. 2023, To 31 Mar. 2024

  Advanced Theoretical Physics I-1

  2201, Fall, Graduate School of Science, 2
• From 01 Apr. 2023, To 31 Mar. 2024

  Seminar on Physics of Matter : Condensed Matter Physics D

  2082, Fall, Graduate School of Science, 2
• From 01 Apr. 2023, To 31 Mar. 2024

  Seminar on Physics of Matter : Condensed Matter Physics C

  2081, Spring, Graduate School of Science, 2
• From 01 Apr. 2023, To 31 Mar. 2024

  Advanced Theoretical Physics I-2

  2202, Fall, Graduate School of Science, 2
• From 01 Apr. 2022, To 31 Mar. 2023

  Seminar on Physics of Matter : Condensed Matter Physics C

  2081, Spring, Graduate School of Science, 2
• From 01 Apr. 2022, To 31 Mar. 2023

  Advanced Theoretical Physics I-1

  2201, Spring, Graduate School of Science, 2
• From 01 Apr. 2022, To 31 Mar. 2023

  Seminar on Physics of Matter : Condensed Matter Physics A

  2079, Spring, Graduate School of Science, 2
• From 01 Apr. 2022, To 31 Mar. 2023

  Advanced Theoretical Physics I-2

  2202, Spring, Graduate School of Science, 2
• From 01 Apr. 2022, To 31 Mar. 2023

  Seminar on Physics of Matter : Condensed Matter Physics B

  2080, Fall, Graduate School of Science, 2
• From 01 Apr. 2022, To 31 Mar. 2023

  Seminar on Physics of Matter : Condensed Matter Physics D

  2082, Fall, Graduate School of Science, 2
• From Apr. 2014, To Mar. 2015

  Seminar on Physics of Matter : Condensed Matter Physics A

  Spring, 理学研究科
• From Apr. 2014, To Mar. 2015

  Seminar on Physics of Matter : Condensed Matter Physics B

  Fall, 理学研究科
• From Apr. 2014, To Mar. 2015

  Seminar on Physics of Matter : Condensed Matter Physics C

  Spring, 理学研究科
• From Apr. 2014, To Mar. 2015

  Seminar on Physics of Matter : Condensed Matter Physics D

  Fall, 理学研究科
• From Apr. 2014, To Mar. 2015

  Advanced Theoretical Physics I-1

  Spring, 理学研究科
• From Apr. 2014, To Mar. 2015

  Advanced Theoretical Physics I-2

  Spring, 理学研究科
• From Apr. 2015, To Mar. 2016

  Seminar on Physics of Matter : Condensed Matter Physics A

  Spring, 理学研究科
• From Apr. 2015, To Mar. 2016

  Seminar on Physics of Matter : Condensed Matter Physics B

  Fall, 理学研究科
• From Apr. 2015, To Mar. 2016

  Seminar on Physics of Matter : Condensed Matter Physics C

  Spring, 理学研究科
• From Apr. 2015, To Mar. 2016

  Seminar on Physics of Matter : Condensed Matter Physics D

  Fall, 理学研究科
• From Apr. 2016, To Mar. 2017

  Seminar on Physics of Matter : Condensed Matter Physics A

  Spring, 理学研究科
• From Apr. 2016, To Mar. 2017

  Seminar on Physics of Matter : Condensed Matter Physics B

  Fall, 理学研究科
• From Apr. 2016, To Mar. 2017

  Seminar on Physics of Matter : Condensed Matter Physics C

  Spring, 理学研究科
• From Apr. 2016, To Mar. 2017

  Seminar on Physics of Matter : Condensed Matter Physics D

  Fall, 理学研究科
• From Apr. 2016, To Mar. 2017

  Advanced Theoretical Physics I-1

  Fall, 理学研究科
• From Apr. 2016, To Mar. 2017

  Advanced Theoretical Physics I-2

  Fall, 理学研究科
• From Apr. 2017, To Mar. 2018

  Seminar on Physics of Matter : Condensed Matter Physics A

  Spring, 理学研究科
• From Apr. 2017, To Mar. 2018

  Seminar on Physics of Matter : Condensed Matter Physics B

  Fall, 理学研究科
• From Apr. 2017, To Mar. 2018

  Seminar on Physics of Matter : Condensed Matter Physics C

  Spring, 理学研究科
• From Apr. 2017, To Mar. 2018

  Seminar on Physics of Matter : Condensed Matter Physics D

  Fall, 理学研究科
• From Apr. 2017, To Mar. 2018

  Advanced Theoretical Physics I-1

  Fall, 理学研究科
• From Apr. 2017, To Mar. 2018

  Advanced Theoretical Physics I-2

  Fall, 理学研究科
• From Apr. 2018, To Mar. 2019

  Seminar on Physics of Matter : Condensed Matter Physics A

  Spring, 理学研究科
• From Apr. 2018, To Mar. 2019

  Seminar on Physics of Matter : Condensed Matter Physics B

  Fall, 理学研究科
• From Apr. 2018, To Mar. 2019

  Seminar on Physics of Matter : Condensed Matter Physics C

  Spring, 理学研究科
• From Apr. 2018, To Mar. 2019

  Seminar on Physics of Matter : Condensed Matter Physics D

  Fall, 理学研究科
• From Apr. 2018, To Mar. 2019

  Advanced Theoretical Physics I-1

  Spring, 理学研究科
• From Apr. 2018, To Mar. 2019

  Advanced Theoretical Physics I-2

  Spring, 理学研究科
• From Apr. 2019, To Mar. 2020

  Seminar on Physics of Matter : Condensed Matter Physics A

  Spring, 理学研究科
• From Apr. 2019, To Mar. 2020

  Seminar on Physics of Matter : Condensed Matter Physics B

  Fall, 理学研究科
• From Apr. 2019, To Mar. 2020

  Seminar on Physics of Matter : Condensed Matter Physics C

  Spring, 理学研究科
• From Apr. 2019, To Mar. 2020

  Seminar on Physics of Matter : Condensed Matter Physics D

  Fall, 理学研究科
• From Apr. 2019, To Mar. 2020

  Advanced Theoretical Physics I-1

  Fall, 理学研究科
• From Apr. 2019, To Mar. 2020

  Advanced Theoretical Physics I-2

  Fall, 理学研究科
• From Apr. 2020, To Mar. 2021

  Seminar on Physics of Matter : Condensed Matter Physics A

  Spring, 理学研究科
• From Apr. 2020, To Mar. 2021

  Seminar on Physics of Matter : Condensed Matter Physics B

  Fall, 理学研究科
• From Apr. 2020, To Mar. 2021

  Seminar on Physics of Matter : Condensed Matter Physics C

  Spring, 理学研究科
• From Apr. 2020, To Mar. 2021

  Seminar on Physics of Matter : Condensed Matter Physics D

  Fall, 理学研究科
• From Apr. 2020, To Mar. 2021

  Advanced Theoretical Physics I-1

  Spring, 理学研究科
• From Apr. 2020, To Mar. 2021

  Advanced Theoretical Physics I-2

  Spring, 理学研究科
• From Apr. 2021, To Mar. 2022

  Seminar on Physics of Matter : Condensed Matter Physics A

  Spring, 理学研究科
• From Apr. 2021, To Mar. 2022

  Seminar on Physics of Matter : Condensed Matter Physics B

  Fall, 理学研究科
• From Apr. 2021, To Mar. 2022

  Seminar on Physics of Matter : Condensed Matter Physics C

  Spring, 理学研究科
• From Apr. 2021, To Mar. 2022

  Seminar on Physics of Matter : Condensed Matter Physics D

  Fall, 理学研究科
• From Apr. 2021, To Mar. 2022

  Advanced Theoretical Physics I-1

  Fall, 理学研究科
• From Apr. 2021, To Mar. 2022

  Advanced Theoretical Physics I-2

  Fall, 理学研究科

Participation in PhD Defense

• Quantum Cryptographic Primitives with Certified Everlasting Security

  HIROKA TAIGA, Graduate School of Science, Sub-chief Examiner

  24 Mar. 2025
• A study on antiferromagnetic spin-1 chains coupled to environments:the ground-state properties and the computational power of mixed states

  MASUI RIKU, Graduate School of Science, Chief Examiner

  24 Sep. 2024
• Theoretical Study of Invertible States Using Matrix Product States

  OYAMA SHUHEI, Graduate School of Science, Sub-chief Examiner

  25 Mar. 2024
• Quantum algorithm for persistent Betti numbers and topological data analysis

  HAYAKAWA RYU, Graduate School of Science, Sub-chief Examiner

  25 Mar. 2024
• Geometric Method for Solvable Lattice Spin Systems

  OGURA MASAHIRO, Graduate School of Science, Sub-chief Examiner

  23 Mar. 2023
• Systematic construction methods of exactly analyzable models in low dimensions

  IMAMURA YUKIHISA, Graduate School of Science, Chief Examiner

  26 Sep. 2022

Student achievements: Awards

• 第11回日本物理学会若手奨励賞

  仲田光樹, 日本物理学会, Oct. 2016

Administration

School management (title, position)

• From 01 Apr. 2023

  部局情報セキュリティ技術責任者
• From 01 May 2023, To 31 Mar. 2024

  研究用計算機専門委員会　委員
• From 01 Apr. 2008, To 31 Mar. 2009

  広報委員会 委員
• From 01 Apr. 2009, To 31 Mar. 2023

  情報環境機構ＫＵＩＮＳ利用負担金検討委員会　委員

Faculty management (title, position)

• From 19 Jun. 2023

  情報セキュリティ委員会　委員
• From 01 Apr. 2023, To 31 Mar. 2024

  理学研究科大学院教育教務委員会委員
• From 01 Apr. 2019, To 31 Mar. 2024

  計算機委員会　委員
• From 01 Apr. 2015, To 31 Mar. 2016

  滞在型プログラム委員会　委員
• From 01 Apr. 2015

  庶務委員会　委員
• From 01 Apr. 2015

  図書委員会　委員
• From 01 Aug. 2013, To 31 Jul. 2025

  共同利用運営委員会　委員
• From 01 Apr. 2018, To 31 Mar. 2019

  談話会委員会　委員
• From 01 Apr. 2019, To 31 Mar. 2022

  計算機委員会　委員