Quantum Interferences in Cooperative Dicke Emission from Spatial Variation of the Laser Phase

被引：71
|
作者：
Das, Sumanta [1 ]
Agarwal, G. S. [1 ]
Scully, Marlan O. [2 ,3 ,4 ]
机构：
[1] Oklahoma State Univ, Dept Phys, Stillwater, OK 74078 USA
[2] Texas A&M Univ, Inst Quantum Studies, College Stn, TX 77843 USA
[3] Texas A&M Univ, Dept Phys, College Stn, TX 77843 USA
[4] Princeton Univ, Appl Phys & Mat Sci Grp, Princeton, NJ 08544 USA
来源：
PHYSICAL REVIEW LETTERS | 2008年 / 101卷 / 15期
基金：
美国国家科学基金会;
关键词：
D O I：
10.1103/PhysRevLett.101.153601
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We report the generation of a new quantum interference effect in spontaneous emission from a resonantly driven system of two identical two-level atoms due to the spatial variation of the laser phase at the positions of the atoms. This interference affects significantly the spectral features of the emitted radiation and the quantum entanglement in the system. The interference leads to dynamic coupling of the populations and coherences in a basis, determined by the laser phase and represents a kind of vacuum mediated superexchange between the symmetric and antisymmetric states.
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页数：4
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