On the structure of KMS states of disordered systems

被引：2
作者：
Dias Barreto, S [1 ]
Fidaleo, F
机构：
[1] Padre Conceicao Coll Engn, Dept Math, Verna 403722, Goa, India
[2] Univ Roma Tor Vergata, Dipartimento Matemat, I-00133 Rome, Italy
来源：
COMMUNICATIONS IN MATHEMATICAL PHYSICS | 2004年 / 250卷 / 01期
关键词：
D O I：
10.1007/s00220-004-1137-0
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We study the set of KMS states of spin systems with random interactions. This is done in the framework of operator algebras by investigating Connes and Borchers Gamma-invariants of W*-dynamical systems. In the case of KMS states exhibiting a property of invariance with respect to the spatial translations, some interesting properties emerge naturally. Such a situation covers KMS states obtained by infinite-volume limits of finite-volume Gibbs states, that is the quenched disorder. This analysis can be considered as a step towards fully understanding the very complicated structure of the set of temperature states of quantum spin glasses, and its connection with the breakdown of the symmetry for replicas.
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页码：1 / 21
页数：21
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