Relation between quantum phase transitions and classical instability points in the pairing model

被引：11
|
作者：
Reis, M
Cunha, MOT
Oliveira, AC
Nemes, MC
机构：
[1] Univ Fed Minas Gerais, Dept Fis, ICEX, BR-30123970 Belo Horizonte, MG, Brazil
[2] Univ Fed Minas Gerais, Dept Matemat, ICEX, BR-30123970 Belo Horizonte, MG, Brazil
来源：
PHYSICS LETTERS A | 2005年 / 344卷 / 2-4期
关键词：
quantum phase transition; quantum-classical transition; instability points; stereographic projection;
D O I：
10.1016/j.physleta.2005.06.064
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A quantum phase transition, characterized by an accumulation of energy levels in the espectrum of the model, is associated with a qualitative change in the corresponding classical dynamic obtained upon generalized coherent states of angular momentum. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：164 / 169
页数：6
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