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Coherent Population Trapping Induced by Phase Modulated and Fluctuating Fields
作者姓名:王剑  胡响明
作者单位:Department of Physics, Huazhong Normal University, Wuhan 430079
基金项目:Supported by the National Natural Science Foundation of China under Grant Nos 60378008 and 10574052.
摘    要: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 A 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.

关 键 词:相位调整  调制频率  临界交叉  相关性
收稿时间:2006-9-8
修稿时间:2006-09-08

Coherent Population Trapping Induced by Phase Modulated and Fluctuating Fields
WANG Jian,HU Xiang-Ming.Coherent Population Trapping Induced by Phase Modulated and Fluctuating Fields[J].Chinese Physics Letters,2007,24(2):424-427.
Authors:WANG Jian  HU Xiang-Ming
Institution:Department of Physics, Huazhong Normal University, Wuhan 430079
Abstract:
Keywords:42  50  Gy  42  50  Lc  32  80  Qk
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