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Chinese Physics Letters

Strong Correlation and Anticorrelation via Phase-Dependent Coherent Population Trapping

彭延东, 胡响明, 龚成

Published Jan 1, 2008• 0 citations
OpenAlex

Abstract

我们在场在在双 lambda 配置的一个驾驶四水平的系统的光子关联的阶段控制。强壮的关联和反关联是。当四个应用激光领域的集体阶段被改变时，获得了。协调控制基于阶段依赖者套住的协调人口(CPT ) 。当系统在 CPT 附近操作时，强壮的关联发生，当当系统是远的离开 CPT 时，反关联发生时。

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We examine the effects of cross correlated phase fluctuations on the coherent population trapping (CPT) induced by a pair of phase-modulated fields with equal modulation frequencies in a three-level Λ system. The maximal coherence of -0.5, which appears when CPT occurs for equal modulation indices, is preserved in the presence of the critically cross-correlated fluctuations. Unexpectedly, the non-maximal coherence, which is established when CPT is obtained for different modulation indices, is significantly enhanced due to the critically cross-correlated fluctuations.