Aharonov-Anandan Phases in Lipkin-Meskov-Glick Model

被引:0
|
作者
杨大宝 [1 ]
陈景灵 [1 ]
机构
[1] Theoretical Physics Division,Chern Institute of Mathematics,Nankai University
基金
中国国家自然科学基金; 中央高校基本科研业务费专项资金资助;
关键词
geometric phase; spin chain models; calculations for few-body systems;
D O I
暂无
中图分类号
O413 [量子论];
学科分类号
070201 ;
摘要
In the system of several interacting spins,geometric phases have been researched intensively.However,the studies are mainly focused on the adiabatic case (Berry phase),so it is necessary for us to study the non-adiabaticcounterpart (Aharonov and Anandan phase).In this paper,we analyze both the non-degenerate and degenerate geometricphase of Lipkin-Meskov-Glick type model,which has many application in Bose-Einstein condensates and entanglementtheory.Furthermore,in order to calculate degenerate geometric phases,the Floquet theorem and decomposition ofoperator are generalized.And the general formula is achieved.
引用
收藏
页码:247 / 252
页数:6
相关论文
共 3 条