量子电子学报2011，Vol.28Issue(6)：705-709,5.DOI:10.3969/j.issn.1007-5461.2011.06.010
非旋波近似下有外加驱动场时二态量子系统的退相干性
Decoherence in two-state quantun systems through an external controllable driving field without rotating wave approximation
张成强 1姬长建 1刘萌 1谭霞 2李华1
作者信息
- 1. 齐鲁师范学院物理系,山东济南 250200
- 2. 潍坊学院物理与电子科学学院,山东潍坊 261061
- 折叠
摘要
Abstract
The problem of decoherence of two-state quantum systems interacting with a bath through an external controllable driving field without rotating wave approximation is discussed. The off-diagonal elements of density operator in two-state quantum systems are obtained. The result reflects that decoherence of the two-state quantum systems has something to do with its original state, frequency of the bath and external controllable driving field. The relation between the decoherence and external controllable driving field is studied. Properties of an external controllable driving field are obtained when the two-state quantum systems of coherence is maintained.关键词
量子光学/退相干/非旋波近似/二态量子系统/外加驱动场Key words
quantum optics/decoherence/without rotating wave approximation/two-state quantum systems/external controllable driving field分类
数理科学引用本文复制引用
张成强,姬长建,刘萌,谭霞,李华..非旋波近似下有外加驱动场时二态量子系统的退相干性[J].量子电子学报,2011,28(6):705-709,5.
