Quantum interference in a four-level system of a 87Rb atom: Effects of spontaneously generated coherence
Quantum interference in a four-level system of a 87Rb atom: Effects of spontaneously generated coherence
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DOI：
10.1103/physreva.83.013810
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发表时间：
2011-01-11
影响因子：
2.9
通讯作者：
Zheng, Yujun
中科院分区：
文献类型：
--
作者：
Wang, Dongsheng;Zheng, Yujun
本文从理论上分析了Rb-87原子四能级系统中的量子干涉效应和自发相干效应。对于SGC效应，我们发现在不同的耦合场和开关场强度下，由于相消干涉可以诱导出一种新的电磁感应透明通道，并且可以相干地窄化或消除非线性克尔吸收。
In this work, the effects of quantum interference and spontaneously generated coherence (SGC) are theoretically analyzed in a four-level system of a Rb-87 atom. For the effects of SGC, we find that a new kind of electromagnetically induced transparency channel can be induced due to destructive interference, and the nonlinear Kerr absorption can be coherently narrowed or eliminated under different strengths of the coupling and switching fields.