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
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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