Geometric phase and quantum phase transition in the one-dimensional compass model

被引：16
|
作者：
Wang, L. C. [1 ]
Yi, X. X. [1 ]
机构：
[1] Dalian Univ Technol, Sch Phys & Optoelect Technol, Dalian 116024, Peoples R China
来源：
EUROPEAN PHYSICAL JOURNAL D | 2010年 / 57卷 / 02期
基金：
中国国家自然科学基金;
关键词：
KINEMATIC APPROACH; ARRAYS;
D O I：
10.1140/epjd/e2010-00045-4
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We study the geometric phase of the ground state of the one-dimensional compass model in a transverse field. The critical properties of the system in terms of the geometric phase are calculated and discussed. The results show that the general character of quantum phase transitions (QPTs) in the model can be revealed by the Berry phase of the ground state. This study extends the relations between geometric phases and QPTs.
引用
收藏
页码：281 / 286
页数：6
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