ITOI Chigaku
| Department of Physics | Project Professor |
Researcher Information
Research Keyword
Field Of Study
Career
- Apr. 2022 - Present
Nihon University, Department of Physics, 特任教授 - Apr. 2023 - Mar. 2024
Gakushuin University, Faculty of Science, 非常勤講師 - Apr. 2004 - Mar. 2022
日本大学, 理工学部物理学科、大学院理工学研究科物理学専攻, 教授 - Apr. 2001 - Mar. 2004
日本大学, 理工学部物理学科、大学院理工学研究科物理学専攻, 助教授 - Apr. 1997 - Mar. 2001
日本大学, 理工学部物理学科、大学院理工学研究科物理学専攻, 専任講師 - Apr. 1992 - Mar. 1997
日本大学, 理工学部物理学科、大学院理工学研究科物理学専攻, 助手 - Apr. 1989 - Mar. 1992
日本大学, 理工学部, 非常勤講師 - Apr. 1988 - Mar. 1989
日本大学, 理工学部物理学科, 助手 - Sep. 1986 - Mar. 1988
日本大学, 理工学部, 非常勤講師 - Nov. 1985 - Mar. 1988
相模女子大学, 一般教育科, 非常勤講師
Research activity information
Award
Paper
- Griffiths-Type Theorems for Short-Range Spin Glass Models
Chigak Itoi; Hisamitsu Mukaida; Hal Tasaki
Journal of Statistical Physics, Feb. 2024, Refereed, Not invited
Lead - Gauge theory for quantum XYZ spin glasses
C Itoi; Y Sakamoto
Journal of Physics A: Mathematical and Theoretical, Jan. 2024, Refereed, Not invited
Lead - Extended Series of Correlation Inequalities in Quantum Systems
C.Itoi; H. Ishimori; K. Sato; Y. Sakamoto
Journal of the Physical Society of Japan, Jun. 2023, Refereed, Not invited
Lead - Gauge theory for mixed p-spin glasses
Chigak Itoi; Yoshinori Sakamoto
Journal of Physics A: Mathematical and Theoretical, May 2023
Lead - Boundedness of Susceptibility in Spin Glass Transition of Transverse Field Mixed p-spin Glass Models
C. Itoi; Y. Sakamoto
Journal of Physical Society of Japan, May 2023, Refereed, Not invited
Lead - Universality of replica-symmetry breaking in the transverse field Sherrington-Kirkpatrick model
Itoi; C. Ishimori; H.; Sato; K.; Sakamoto; Y.
Journal of Statistical Physics, Feb. 2023, Refereed, Not invited
Lead - Uniqueness of ground state in the Edwards-Anderson spin glass model
C. Itoi
Journal of the Physical Society of Japan, Feb. 2021, Refereed, Not invited
Lead - The second law of thermodynamics from concave energy in classical mechanics
C.Itoi and M. Amano
Journal of the Physical Society of Japan, Oct. 2020, Refereed, Not invited
Lead - The Second law of thermodynamics from concavity of energy eigenvalues
C. Itoi and M. Amano
Journal of the Physical Society Japan, Sep. 2020, Refereed, Not invited
Lead - Absence of replica symmetry breaking in disordered FKG-Ising models under uniform field
C. Itoi and Y. Utsunomiya
Journal of Mathematical Physics, Jul. 2020, Refereed, Not invited
Lead - The Schwartz-Soffer and more inequalities for random fields
C. Itoi and Y. Sakamoto
Journal of Physics A, Jul. 2020, Refereed, Not invited
Lead - Self-averaging of perturbation Hamiltonian density in perturbed spin systems
C. Itoi
Journal of Statistical Physics, Nov. 2019, Refereed, Not invited
Lead - No replica symmetry breaking phase in the random field Ginzburg-Landau model
C. Itoi and Y. Utsunomiya
Journal of Mathematical Physics, Aug. 2019, Refereed, Not invited
Lead - Zero-Variance of Perturbation Hamiltonian Density in Perturbed Spin Systems
C. Itoi
Journal of Statistical Physics, Aug. 2019, Refereed, Not invited
Lead - Absence of Replica Symmetry Breaking in the Transverse and Longitudinal Random Field Ising Model
C. Itoi
Journal of Statistical Physics, Feb. 2018, Refereed, Not invited - Universal Nature of Replica Symmetry Breaking in Quantum Systems with Gaussian Disorder
C. Itoi
JOURNAL OF STATISTICAL PHYSICS, Jun. 2017, Refereed, Not invited - General Properties of Overlap Operators in Disordered Quantum Spin Systems
C. Itoi
JOURNAL OF STATISTICAL PHYSICS, Jun. 2016, Refereed, Not invited - Quantum phase transitions in 1/3 plateau of the quantum spin tube
Okunishi Kouichi; Sato Masahiro; Sakai Toru; Okamoto Kiyomi; Itoi Chigaku
JOURNAL OF THE KOREAN PHYSICAL SOCIETY, Aug. 2013, Refereed, Not invited - Spin-chirality separation and S-3 symmetry breaking in the magnetization plateau of the quantum spin tube
Kouichi Okunishi; Masahiro Sato; Toru Sakai; Kiyomi Okamoto; Chigak Itoi
PHYSICAL REVIEW B, Feb. 2012, Refereed, Not invited - Exotic Quantum Phase Transitions in Spin Nanotubes
Toru Sakai; Masahiro Sato; Kouichi Okunishi; Kiyomi Okamoto; Chigak Itoi
26TH INTERNATIONAL CONFERENCE ON LOW TEMPERATURE PHYSICS (LT26), PTS 1-5, 2012 - Exotic Quantum Critical Phenomena of the Spin Nanotubes
Toru Sakai; Masahiro Sato; Kouichi Okunishi; Kiyomi Okamoto; Chigak Itoi
INTERNATIONAL SYMPOSIUM: NANOSCIENCE AND QUANTUM PHYSICS 2011 (NANOPHYS'11), 2011 - Exotic quantum phase transitions in the spin nanotube
Sakai T; Sato M; Okunishi K; Okamoto K; Itoi C
INTERNATIONAL CONFERENCE ON FRUSTRATION IN CONDENSED MATTER (ICFCM), 2011, Refereed, Not invited - Field induced exotic phenomena of the S=1/2 three-leg quantum spin nanotube
K. Okamoto; M. Sato; K. Okunishi; T. Sakai and C. Itoi
J. Low. Temp. Phys., 2011, Refereed, Not invited - Magnetization plateau of the quantum spin nanotube
Kiyomi Okamoto; Masahiro Sato; Kouichi Okunishi; Toru Sakai; Chigak Itoi
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, Jan. 2011, Refereed, Not invited - Quantum spin nanotubes-frustration, competing orders and criticalities
Toru Sakai; Masahiro Sato; Kiyomi Okamoto; Kouichi Okunishi; Chigak Itoi
JOURNAL OF PHYSICS-CONDENSED MATTER, Oct. 2010, Refereed, Invited - Incomplete Schiff Shielding of Nuclear Electric Dipole Moment in Ionic Atom
Chigak Itoi; Sachiko Oshima
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, Oct. 2010, Refereed, Not invited - Quantum phase transitions of the asymmetric three-leg spin tube
Tôru Sakai; Masahiro Sato; Kouichi Okunishi; Yuichi Otsuka; Kiyomi Okamoto; Chigak Itoi
Physical Review B - Condensed Matter and Materials Physics, Nov. 2008, Refereed, Not invited - Random field O(N) spin model near four dimensions
Y. Sakamoto; H. Mukaida; C. Itoi
Journal of Physics C, 2007
Last - Stability of fixed points in the (4+epsilon)-dimensional random field O(N) spin model for sufficiently large N
Yoshinori Sakamoto; Hisamitsu Mukaida; Chigak Itoi
PHYSICAL REVIEW B, Aug. 2006, Refereed, Not invited - Effect of second-rank random anisotropy on critical phenomena of a random-field O(N) spin model in the large N limit
Y Sakamoto; H Mukaida; C Itoi
PHYSICAL REVIEW B, Oct. 2005, Refereed, Not invited - Gapless excitation above a domain wall ground state in a flat-band Hubbard model
M. Homma; C. Itoi
Journal of statistical physics, 2005, Refereed, Not invited
Corresponding - Ferromagnetic domain wall and spiral ground states in one-dimensional deformed flat-band Hubbard model
M Homma; C Itoi
JOURNAL OF STATISTICAL PHYSICS, Nov. 2004, Refereed, Not invited - Exact solutions of domain wall and spiral ground states in Hubbard models
M. Homma; C. Itoi
Journal of the physical society of Japan, 2004, Refereed, Not invited
Corresponding - Magnetization and specific heat of a ferromagnetic zigzag spin chain compound LaCrOS2
Y Takano; T Tsubaki; C Itoi; K Takase; K Sekizawa
SOLID STATE COMMUNICATIONS, 2002, Refereed, Not invited - Frequency pulling effects in the quasi-two-dimensional ferromagnet Mn-54-Mn(COOCH3)(2)center dot 4H(2)O studied by nuclear orientation techniques
J Pond; T Briant; L Goehring; A Kotlicki; BG Turrell; C Itoi
PHYSICAL REVIEW B, Aug. 2001, Refereed, Not invited - Strongly reduced gap in the zigzag spin chain with a ferromagnetic interchain coupling
C Itoi; SJ Qin
PHYSICAL REVIEW B, Jun. 2001, Refereed, Not invited - Effective theory of magnetization plateaus in a three-leg ladder with periodic boundary conditions
R Citro; E Orignac; N Andrei; C Itoi; S Qin
JOURNAL OF PHYSICS-CONDENSED MATTER, Apr. 2000, Refereed, Not invited - Phase diagram of a one-dimensional spin-orbital model
C Itoi; SJ Qin; Affleck, I
PHYSICAL REVIEW B, Mar. 2000, Refereed, Not invited - Renormalization group for renormalization-group equations toward the universality classification of infinite-order phase transitions
C Itoi; H Mukaida
PHYSICAL REVIEW E, Oct. 1999, Refereed, Not invited - Magnetic properties of a ferromagnetic double spin chain compound LaCrOS2
Y Takano; K Takase; G Kitamura; C Itoi; K Sekizawa
JOURNAL OF APPLIED PHYSICS, Apr. 1999, Refereed, Not invited - Replica method for wide correlators in Gaussian orthogonal, unitary and symplectic random matrix ensembles
C Itoi; H Mukaida; Y Sakamoto
JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, Aug. 1997, Refereed, Not invited - Universal wide correlators in non-gaussian orthogonal, unitary and symplectic random matrix ensembles
C Itoi
NUCLEAR PHYSICS B, Jun. 1997, Refereed, Not invited - Renormalization group approach to multiple-arc random matrix models
S Higuchi; C Itoi; SM Nishigaki; N Sakai
PHYSICS LETTERS B, Apr. 1997, Refereed, Not invited - Extended massless phase and the Haldane phase in a spin-1 isotropic antiferromagnetic chain
C Itoi; MH Kato
PHYSICAL REVIEW B, Apr. 1997, Refereed, Not invited - RANDOM-WALK CONSTRUCTION OF SPINOR FIELDS ON A 3-DIMENSIONAL LATTICE
M ASANO; C ITOI; S KOJIMA
NUCLEAR PHYSICS B, Aug. 1995, Refereed, Not invited - SPIN TRANSMUTATION IN (2+1)-DIMENSIONS
W CHEN; C ITOI
NUCLEAR PHYSICS B, Feb. 1995, Refereed, Not invited - RENORMALIZATION-GROUP FLOW IN ONE-MATRIX AND 2-MATRIX MODELS
S HIGUCHI; C ITOI; S NISHIGAKI; N SAKAI
NUCLEAR PHYSICS B, Jan. 1995, Refereed, Not invited - SMOOTH PATHS ON 3-DIMENSIONAL LATTICE
C ITOI
PHYSICAL REVIEW LETTERS, Dec. 1994, Refereed, Not invited - BOUND-STATE-SPECTRUM OF THE SU(2) MASSIVE THIRRING MODEL
T FUJITA; C ITOI; A OGURA; M TAKI
JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, Aug. 1994, Refereed, Not invited - NON-ABELIAN GAUGE-THEORY FOR QUANTUM HEISENBERG ANTIFERROMAGNETIC CHAIN
C ITOI; H MUKAIDA
JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, Jul. 1994, Refereed, Not invited - EQUIVALENCE IN SPIN-WAVE THEORIES
C ITOI; M KATO
JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, Apr. 1994, Refereed, Not invited - EQUIVALENCE OF SEVERAL CHERN-SIMONS MATTER MODELS
W CHEN; C ITOI
PHYSICAL REVIEW LETTERS, Apr. 1994, Refereed, Not invited - Renormalization Group Approach to Matrix Models and Vector Models :
HIGUCHI Saburo; ITOI Chigak; SAKAI Norisuke
Progress of theoretical physics. Supplement, 1994, Not refereed, Not invited - Equivalence of Several Chern-Simons Matter Models
C. Itoi and M. Kato
Journal of Pysics A, 1994, Refereed, Not invited
Lead - NONLINEAR RENORMALIZATION-GROUP EQUATION FOR MATRIX MODELS
S HIGUCHI; C ITOI; S NISHIGAKI; N SAKAI
PHYSICS LETTERS B, Nov. 1993, Refereed, Not invited - EXACT BETA FUNCTIONS IN THE VECTOR MODEL AND RENORMALIZATION-GROUP APPROACH
S HIGUCHI; C ITOI; N SAKAI
PHYSICS LETTERS B, Aug. 1993, Refereed, Not invited - RENORMALIZATION-GROUP APPROACH TO MATRIX MODELS AND VECTOR MODELS
S HIGUCHI; C ITOI; N SAKAI
PROGRESS OF THEORETICAL PHYSICS SUPPLEMENT, 1993, Refereed, Not invited - PHYSICAL STATES OF THE TOPOLOGICAL SCHWINGER MODEL
CG ITOI; H MUKAIDA
MODERN PHYSICS LETTERS A, Jan. 1992, Refereed, Not invited - THE SPIN FACTOR IN KNOTS AND A RELATIVISTIC TREATMENT OF THE BOSE-FERMI TRANSMUTATION IN 2ND-QUANTIZED THEORIES
S ISO; C ITOI; H MUKAIDA
NUCLEAR PHYSICS B, Dec. 1990, Refereed, Not invited - NECESSITY OF A FINITE-SIZE TERM IN THE WZW MODEL
S ISO; C ITOI; H MUKAIDA
PHYSICS LETTERS B, Jul. 1990, Refereed, Not invited - GEOMETRIC DESCRIPTION FOR SPINNING PARTICLES IN 3 DIMENSIONS AND CHERN-SIMONS-POLYAKOV THEORY
S ISO; C ITOI; H MUKAIDA
PHYSICS LETTERS B, Feb. 1990, Refereed, Not invited - GAUGE-INVARIANCE BASED ON THE EXTRINSIC GEOMETRY IN THE RIGID STRING
C ITOI; H KUBOTA
ZEITSCHRIFT FUR PHYSIK C-PARTICLES AND FIELDS, 1989, Refereed, Not invited - EXTRINSIC TORSION IN RIGID STRINGS
C ITOI
PHYSICS LETTERS B, Aug. 1988, Refereed, Not invited - BRST QUANTIZATION OF THE STRING MODEL WITH EXTRINSIC CURVATURE
C ITOI; H KUBOTA
PHYSICS LETTERS B, Mar. 1988, Refereed, Not invited - THE STRING IN BACKGROUND FIELDS AND THE PARALLELIZED MANIFOLD
C ITOI
PHYSICS LETTERS B, Jan. 1988, Refereed, Not invited - NONPERTURBATIVE EFFECT IN THE BETA-FUNCTIONS AND THE EQUATIONS OF MOTION FOR THE STRING
C ITOI; Y WATABIKI
PHYSICS LETTERS B, Dec. 1987, Refereed, Not invited - STRING VERTICES IN A WEAKLY CURVED BACKGROUND
C ITOI
PHYSICS LETTERS B, Sep. 1987, Refereed, Not invited - SELF-CONSISTENT SOLUTIONS OF KALUZA-KLEIN METRIC IN INDUCED GRAVITY
C ITOI; S NAKA
PROGRESS OF THEORETICAL PHYSICS, 1985, Refereed, Not invited - INDUCED GRAVITY IN HIGHER-DIMENSIONAL SPACETIME AND THE MASS SCALE OF THE KALUZA-KLEIN THEORY
S NAKA; C ITOI
PROGRESS OF THEORETICAL PHYSICS, 1983, Refereed, Not invited
MISC
- Physics of the Spin Nanotubes
Sakai Toru; Sato Masahiro; Okunishi Kouichi; Okamoto Kiyomi; Otsuka Yuichi; Itoi Chigaku
Meeting abstracts of the Physical Society of Japan, 26 Aug. 2013 - Rigorous analysis of the spin glass model by Guerra's interpolation method
Itoi C.; Nitta T.
Meeting abstracts of the Physical Society of Japan, 26 Aug. 2013 - Physics of the Spin Nanotubes
Sakai Toru; Sato Masahiro; Okunishi Kouichi; Okamoto Kiyomi; Otsuka Yuichi; Itoi Chigak
Meeting abstracts of the Physical Society of Japan, 26 Aug. 2013 - 22aGP-6 Numerical study of the novel orders and internal symmetry in the 1/3 plateau state of the quantum spin tube
Okunishi K.; Sato M.; Itoi C.; Okamoto K.; Sakai T.
Meeting abstracts of the Physical Society of Japan, 24 Aug. 2011 - 21aGA-8 Chirality Liquid and Quantum Phase Transitions in the Magnetization Plateau of the Three-Leg Spin Tube
Sato Masahiro; Okunishi Kouichi; Itoi Chigaku; Okamoto Kiyomi; Sakai Toru
Meeting abstracts of the Physical Society of Japan, 24 Aug. 2011 - 23pWP-14 Theory of the anomalous plateau phase in S=1/2 isoceles triangle spin nanotube
Okamoto Kiyomi; Sato Masahiro; Okunishi Kouichi; Sakai Toru; Itoi Chigak
Meeting abstracts of the Physical Society of Japan, 18 Aug. 2010 - 21pEA-11 Staggered Magnetization, Dimer and Chiral Orders at 1/3 Magnetization Plateau of the Quantum Spin Tube
Sakai T.; Sato M.; Okunishi K.; Okamoto K.; Itoi C.
Meeting abstracts of the Physical Society of Japan, 01 Mar. 2010 - 22pEF-4 Exotic behavior of the magnetization plateau width of the three-leg spin nanotube
Okamoto Kiyomi; Sakai Toru; Sato Masahiro; Okunishi Kouichi; Itoi Chigak
Meeting abstracts of the Physical Society of Japan, 01 Mar. 2010 - 26pQK-15 1/3 Magnetization Plateau of the S=1/2 Three-Leg Quantum Spin Tube
Sakai T.; Sato M.; Okunishi K.; Okamoto K.; Itoi C.
Meeting abstracts of the Physical Society of Japan, 18 Aug. 2009 - 28pTG-1 Spin Nanotube : Recent Theoretical Development
Sakai T.; Sato M.; Okunishi K.; Otsuka Y.; Okamoto K.; Itoi C.
Meeting abstracts of the Physical Society of Japan, 03 Mar. 2009 - 28pTG-1 Spin Nanotube : Recent Theoretical Developement
Sakai T.; Sato M.; Okunishi K.; Otsuka Y.; Okamoto K.; Itoi C.
Meeting abstracts of the Physical Society of Japan, 03 Mar. 2009 - 22pVD-12 Quantum Phase Transition in Three-Leg Spin Tube
Sakai T.; Sato M.; Okunishi K.; Otsuka Y.; Okamoto K.; Itoi C.
Meeting abstracts of the Physical Society of Japan, 25 Aug. 2008 - Comment on "Random-field spin models beyond 1 loop: A mechanism for decreasing the lower critical dimension"
Yoshinori Sakamoto; Hisamitsu Mukaida; Chigak Itoi
PHYSICAL REVIEW LETTERS, Jun. 2007, Refereed, Not invited - Exact solution with a quantum domain wall in a deformed flat-band Hubbard model
Itoi C.; Homma M.
Meeting abstracts of the Physical Society of Japan, 13 Aug. 2002 - 26pXY-2 Field theoretical study of s = 1/2 zigzag spin chain
Homma M.; Itoi C.
Meeting abstracts of the Physical Society of Japan, 01 Mar. 2002 - Phase stucture of a one dimensional spin-orbital model
Itoi C.; Qin S.; Affleck I.
Meeting abstracts of the Physical Society of Japan, 10 Mar. 2000 - 行列模型に対する繰り込み群的解析(量子場の理論,研究会報告)
樋口 三郎; 糸井 千岳; 西垣 真祐; 坂井 典佑
素粒子論研究, 20 Apr. 1994 - 4p-C-5 Renormalization group approach to matrix models
HIGUCHI Saburo; ITOI Chigaku; NISHIGAKI Shinsuke; SAKAI Norisuke
Abstracts of the meeting of the Physical Society of Japan. Sectional meeting, 20 Sep. 1993 - The renormalization group approach to matirix models and vector models
Higuchi Saburo; Itoi Chigak; Sakai Norisuke
Abstracts of the meeting of the Physical Society of Japan. Annual meeting, 16 Mar. 1993
Books and other publications
Lectures, oral presentations, etc.
- Characterization of replica symmetry breaking in finite-dimensional spin glass models
Chigak Itoi; Hisamitsu Mukaida; Hal Tasaki
日本物理学会第７８回年次大会, Sep. 2023, Not invited - Gauge theory for XYZ spin glass models
Y. Sakamoto; C. Itoi
日本物理学会第７８回年次大会, Sep. 2023, Not invited - New Bogoliubov-Harris type correlation inequalities
佐藤洸太; 石森大翔,坂元啓紀; 糸井千岳
日本物理学会2022年秋季大会, Sep. 2022, Not invited - Opening for symposium ``Parisi's spin glass theory and progress in studies of the complex systems"
糸井 千岳
日本物理学会2022年秋季大会, Sep. 2022, 日本物理学会, Not invited - Parisi's spin glass theory and progress in studies of complex systems
坂田綾香,池田晴國,吉野元,笹本智弘
日本物理学会2022年秋季大会, Sep. 2022, Not invited - Extension of the RSB existence theorem in the transverse field SK model
石森大翔,佐藤洸太; 坂元啓紀; 糸井千岳
日本物理学会年会, Mar. 2022, Not invited - ランダム横磁場摂動を加えたランダムボンドIsing模型
堀江宏太; 島尻裕巳; 坂元啓紀; 糸井千岳
日本物理学会２０２１秋季大会, Sep. 2021, 日本物理学会, Not invited - ランダムボンドIsing摂動を加えたランダム横磁場スピン模型
島尻裕巳; 堀江宏太; 坂元啓紀; 糸井千岳
日本物理学会２０２１秋季大会, Sep. 2021, 日本物理学会, Not invited - The second law of thermodynamics in an isolated quantum system from the concavity of an energy function
S. Suzuki; C. Itoi
Physical Society Japan 2021 annual (76th) meeting, Mar. 2021, Physical Society Japan, Not invited - Absence of RSB in the Edwards-Anderson model at zero temperature
C. Itoi
Physical Society Japan 2021 annual (76th) meeting, Mar. 2021, Physical society Japan, Not invited - Inequalities for multiple-point correlation functions in random-field,spin model
Y. Sakamoto; C. Itoi
Physical Society Japan 2021 annual (76th) meeting, Mar. 2021, Physical Society Japan, Not invited - Absence of RSB in the Edwards-Anderson model at zero temperature
C. Itoi
Physical Society Japan 2021 annual (76th) meeting, Mar. 2021, Physical society Japan, Not invited - 摂動ハミルトニアンの自己平均性
糸井千岳
日本物理学会第７５回年次大会, Mar. 2020, 日本物理学会, Not invited - Planckの原理が要請する量子力学系におけるエネルギーの凹性
天野元揮、糸井千岳
日本物理学会第７５回年次大会, Mar. 2020, 日本物理学会, Not invited - ランダムFKG-Ising系にレプリカ対称性の破れがないこと
宇都宮靖之、糸井千岳
日本物理学会２０１９年秋季大会, Sep. 2019, 日本物理学会, Not invited - variance inequality of perturbation Hamiltonian density
C. Itoi
2019 Annual (74th) meeting, Mar. 2019, The physical society of Japan, Not invited - Division 11, quantum psi systems and boson systems
Okunihsi; Tasaki; Tanaka; Sugimoto and Seki
2019 Annual (74th) meeting, Mar. 2019, The physical society of Japan, Invited - absence of replica symmetry breaking in random FKG systems
Y. Utsunomiya; C. Itoi
2019 Annual (74th) meeting, Mar. 2019, The physical society of Japan, Not invited - 弱FKG量子ランダムスピン系にRSBがないこと
糸井千岳
日本物理学会２０１７年秋季大会, Sep. 2017, 日本物理学会, Not invited - Whenever replica symmetry breaking occurs in disordered quantum systems
C. Itoi
Topological Phases and Functionality of Correlated Electron Systems, Feb. 2017, ISSP, Not invited - Spin nanotubes
T. Sakai; M. Sato; K. Okunishi; K. Okamoto; C. Itoi and H. Nakano
5th International Meeting on Spin in Organic Semiconductors, Oct. 2014, Not invited - 模型補間法によるスピングラス模型の厳密な解析
新田貴成、糸井千岳
日本物理学会2013秋季大会, Sep. 2013, 日本物理学会, Not invited - ``Smart path method for the Sherrington-Kirkpatrick model with non-centered Gaussian randomness"
C. Itoi and T. Nitta
Mathematical Statistical Physics, A satellite meeting of STATPHYS 25 (2013) and a YITP workshop, Aug. 2013, 基礎物理学研究所 - Smart path method for the Sherrington-Kirkpatrick model with non-centered Gaussian randomness
C. Itoi and T. Nitta
Mathematical Statistical Physics, A satellite meeting of STATPHYS 25 (2013) and a YITP workshop, 2013, 基礎物理学研究所, Not invited - Density matrix renormalization group and numerical diagonalization study on the quantum spin nanotube in magnetic field
T. Sakai; M. Sato; K. Okunishi; K. Okamoto and C. Itoi
Joint International Conference of 7th Supercomputing in Nuclear Application and 3rd Monte Carlo, Oct. 2010, Not invited - Exotic quantum phase transitions in the S=1/2 three-leg spin tube
T. Sakai; M. Sato; K. Okunishi; K. Okamoto and C. Itoi
24th International Conference on Statistical Physics (STATPHYS-24), Jul. 2010, Not invited - スピンチューブの磁化プラトーにおけるスタガード磁化,ダイマー及びカイラル秩序の共存
坂井 徹; 佐藤 正寛; 奥西 巧一; 岡本 清美; 糸井 千岳
日本物理学会２０１０年次大会, Mar. 2010, 日本物理学会, Not invited - Field-induced quantum phase transitions of the asymmetric three-leg spin tube
T. Sakai; M. Sato; K. Okunishi; K. Okamoto and C. Itoi
American Physical Society March Meeting 2010, Mar. 2010, Not invited - 三本鎖スピンチューブの3分の1磁化プラトー
坂井 徹; 奥西 巧一; 岡本 清美; 糸井 千岳; 佐藤 正寛
日本物理学会２０0９年秋季大会, Sep. 2009, 日本物理学会, Invited - Hopfield模型における忘却記憶の想起について
糸井千岳、中込智彰
日本物理学会２００９年次大会, Mar. 2009, 日本物理学会, Invited - Quantum phase transition of the asymmetric three-leg spin tube
T. Sakai; M. Sato; K. Okunishi; Y. Otsuka; K. Okamoto and C. Itoi
American Physical Society March Meeting 2009, 2009, Not invited - Quantum phase transition of spin nanotube
T. Sakai; K. Okunishi; Y. Otsuka; K. Okamoto; M. Sato and C. Itoi
2nd International Symposium on Anomalous Quantum Materials, 2008, Not invited - 変形平坦バンド Hubbard 模型のスピン波励起状態
本間真、糸井千岳
日本物理学会2003年秋季大会, Sep. 2003, 日本物理学会, Not invited - 変形 Hubbard 模型における量子磁壁スパイラル厳密解とその安定性
本間真、糸井千岳
日本物理学会2003年年次大会, Mar. 2003, 日本物理学会, Not invited - 2次元の Coleman の定理は証明されていなかった
糸井千岳
日本物理学会2003年年次大会, Mar. 2003, 日本物理学会, Not invited - 変形された平坦バンド Hubbard 模型における量子磁壁厳密解
本間真、糸井千岳
日本物理学会2002年秋季大会, Sep. 2002, 日本物理学会, Not invited - 磁壁のある量子強磁性状態の励起状態
高麗徹、山中雅則、糸井千岳
日本物理学会2002年年次大会, Mar. 2002, Not invited - レプリカ法による 4 + ε 次元ランダム磁場 O(N )vector 模型の臨界現象
坂元啓紀、向田寿光、糸井千岳
日本物理学会2000年秋季大会, Sep. 2000, 日本物理学会, Not invited - スピン1/2ジグザグ鎖 SrCuO2 のギャップと帯磁率
糸井千岳、S. Qin
日本物理学会2000年秋季大会, Sep. 2000, 日本物理学会, Not invited - 1次元スピン軌道模型の相構造
糸井千岳、S. Qin; I. Affleck
日本物理学会2000年年次大会, Mar. 2000, 日本物理学会, Not invited - スピン1等方反強磁性鎖における Gapless-Haldane 転移
糸井千岳
日本物理学会1997年秋季大会, Oct. 1997, 日本物理学会, Not invited - Large N renormalization groop for random matrix ensembles
C. Itoi
Taiwan spring school of particle physics, Mar. 1997, Invited - ランダム行列理論における普遍な長距離準位相関関数
向田寿光、坂元啓紀、糸井千岳
日本物理学会1997年年次大会, Mar. 1997, 日本物理学会, Not invited - Large N renormalization group for matrix models
C. Itoi
The Fourth Wigner Simposium, Aug. 1996, Not invited - Random walk constraction of the spinor fields in three dimensions
C. Itoi
15th Research Conference for High energy Theoretical Physicsists, Aug. 1994, Not invited - Quantum Diffusion Process with Complex Weight on Three Dimensional Lattice
C. Itoi
The Conference on 140th Birthday of Henri Poincare in Russia, Jun. 1994, Institute for high energy physics, Invited
