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arXiv 1303.4864quant-ph
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共浴Jaynes-Cummings模型中的准暗态和量子干涉

The quasi-dark state and quantum interference in Jaynes-Cummings model with a common bath

Zhihai Wang, D. L. Zhou

摘要:

在现有的实验条件下,我们设计了一个共浴的原子-腔复合系统,原子的衰变通道与腔模相互干涉。当没有原子与腔场的直接耦合时,系统可以被囚禁在准暗态(原子和腔场的激发态的相干叠加)中,即使在有熔池存在的情况下也不会发生衰变。当原子与腔场直接耦合时,复合系统的最大衰减率将超过两个子系统的衰减率之和,而最小衰减率可达0。这表现在透射谱中,真空拉比分裂具有明显的非对称性。

英文摘要:

Within the capacity of current experiments, we design a composite atom-cavity system with a common bath, in which the decay channels of the atom and the cavity mode interfere with each other. When the direct atom-cavity coupling is absent, the system can be trapped in a quasi-dark state (the coherent superposition of excited states for the atom and the cavity mode) without decay even in the presence of the bath. When the atom directly couples with the cavity, the largest decay rate of the composite system will surpass the sum of the two subsystems while the smallest decay rate may achieve 0. This is manifested in the transmission spectrum, where the vacuum Rabi splitting shows an obvious asymmetric character.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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