K Takahashi

English/Japanese

April 01, 2013 updated

Kazutaka Takahashi

Department of Physics, Tokyo Institute of Technology
Ookayama 2-12-1-H41, Meguro-ku, Tokyo 152-8551 JAPAN
e-mail:

Research Interests
- Quantum and statistical physics
- Phase transitions and critical phenomena
- Spin glasses and other disordered systems
- Field theoretical methods

Recent publications [full list]
- KT
  "Transitionless quantum driving for spin systems"
  arXiv:1209.3153
- Tomoyuki Obuchi and KT
  "Dynamical singularities of glassy systems in a quantum quench"
  Physical Review E 86, 051125 (2012) [arXiv:1208.2800]
- Tomoyuki Obuchi and KT
  "Partition-function zeros of spherical spin glasses and their relevance to chaos"
  Journal of Physics A: Mathematical and Theoretical 45, 125003 (2012) [arXiv:1110.0942]
- Zsolt Bertalan and KT
  "Ensemble inequivalence and the spin-glass transition"
  Journal of Statistical Mechanics: Theory and Experiment (2011) P11022 [arXiv:1109.6366]
- Zsolt Bertalan and KT
  "Stability in microcanonical many-body spin glasses"
  Journal of the Physical Society of Japan 81, 044601 (2012) [arXiv:1107.1929]
- KT, Hidetoshi Nishimori, and Victor Martin-Mayor
  "Ensemble equivalence in spin systems with short-range interactions"
  Journal of Statistical Mechanics: Theory and Experiment (2011) P08024 [arXiv:1105.6144]
- KT and Yoshiki Matsuda
  "Quantum phase transitions and dynamical correlations in spin-glass systems"
  Journal of Physics: Conference Series 297, 012021 (2011)
  Invited Talk at STATPHYS-Kolkata VII (November 2010, Kolkata, India)
- KT
  "Replica analysis of partition-function zeros in spin-glass models"
  Journal of Physics A: Mathematical and Theoretical 44, 235001 (2011) [arXiv:1101.3658]
- Tomoyuki Obuchi, KT, and Koujin Takeda
  "Statistical mechanical analysis of a hierarchical random code ensemble in signal processing"
  Journal of Physics A: Mathematical and Theoretical 44, 085002 (2011) [arXiv:1011.3722]
- Tomoyuki Obuchi, KT, and Koujin Takeda
  "Replica symmetry breaking, complexity and spin representation in the generalized random energy model"
  Journal of Physics A: Mathematical and Theoretical 43, 485004 (2010) [IOPselect] [arXiv:1007.1531]

Education
- B.Sc.(Physics), Univ. of Tsukuba (Japan), March 1996
- M.Sc.(Physics), Univ. of Tsukuba (Japan), March 1998
- Ph.D.(Physics), Univ. of Tsukuba (Japan), March 2001
  Thesis: Disordered Systems with Chiral Symmetry
  Advisor: Prof. Shinji Iida (Ryukoku University)

Position
- Apr. 1998 - Mar. 2001 : JSPS research fellow at Univ. of Tsukuba (Japan) Advisor: Prof. Tetsuo Hatsuda (Now at RIKEN)
- Apr. 2001 - Dec. 2004 : Wissenschaftliche Mitarbeiter for Prof. Konstantin B. Efetov at Theoretische Physik III, Ruhr-Univ. Bochum (Germany)
  Supported by:
  SFB 237 "Unordnung und grosse Fluktuationen" (-2002)
  SFB/TR12 "Symmetries and Universality in Mesoscopic Systems" (2003-)
- Dec. 2004 - Feb. 2006 : Contract researcher for Prof. Akira Furusaki at Condensed Matter Theory Laboratory, RIKEN (Japan)
- Mar. 2006 - present : Research associate (assistant professor) for Prof. Hidetoshi Nishimori at Department of Physics (Condensed Matter Theory Group), Tokyo Institute of Technology (Japan)