スピン系の相転移・臨界現象
,非平衡定常系の熱力学の構築
,量子統計力学の基礎づけ
,強相関電子系における強磁性の起源
,量子多体系
,数理物理学
,phase transition and critical phenomena in spin systems
,construction of thermodynamics for nonequilibrium steady state
,foundation of quantum statistical mechanics
,origin of ferromagnetism in strongly interacting electron systems
,quantum many-body systems
,mathematical physics
Teruhisa S. Komatsu   Naoko Nakagawa   Shin-Ichi Sasa   Hal Tasaki   
JOURNAL OF STATISTICAL PHYSICS 134(2) 401-423 2009年1月
Recently a novel concise representation of the probability distribution of heat conducting nonequilibrium steady states was derived. The representation is valid to the second order in the "degree of nonequilibrium", and has a very suggestive form ...
Teruhisa S. Komatsu   Naoko Nakagawa   Shin-Ichi Sasa   Hal Tasaki   
JOURNAL OF STATISTICAL PHYSICS 134(2) 401-423 2009年1月
Recently a novel concise representation of the probability distribution of heat conducting nonequilibrium steady states was derived. The representation is valid to the second order in the "degree of nonequilibrium", and has a very suggestive form ...
EUROPEAN PHYSICAL JOURNAL B 64(3-4) 365-372 2008年8月
It is believed that strong ferromagnetic orders in some solids are generated by subtle interplay between quantum many-body effects and spin-independent Coulomb interactions between electrons. Here we describe our rigorous and constructive approach...
European Physical Journal B 64(3-4) 365-372 2008年8月
It is believed that strong ferromagnetic orders in some solids are generated by subtle interplay between quantum many-body effects and spin-independent Coulomb interactions between electrons. Here we describe our rigorous and constructive approach...