Berry phase in a generalized nonlinear two-level system

被引：0
|
作者：
刘继兵 [1 ]
李家华 [1 ]
宋佩君 [1 ]
李伟斌 [2 ]
机构：
[1] Department of Physics, Huazhong University of Science and Technology
[2] Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences
来源：
Chinese Physics B | 2008年 / 17卷 / 01期
基金：
中国国家自然科学基金;
关键词：
geometric phase; nonlinear system; atom–field coupling;
D O I：
暂无
中图分类号：
O431.2 [量子光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this paper, we investigate the behaviour of the geometric phase of a more generalized nonlinear system composed of an effective two-level system interacting with a single-mode quantized cavity field. Both the field nonlinearity and the atom-field coupling nonlinearity are considered. We find that the geometric phase depends on whether the index k is an odd number or an even number in the resonant case. In addition, we also find that the geometric phase may be easily observed when the field nonlinearity is not considered. The fractional statistical phenomenon appears in this system if the strong nonlinear atom-field coupling is considered. We have also investigated the geometric phase of an effective two-level system interacting with a two-mode quantized cavity field.
引用
收藏
页码：38 / 42
页数：5
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