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arXiv 0812.3696quant-ph
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受驱动V型原子中腔诱导的巨克尔非线性效应

Cavity-induced giant Kerr nonlinearities in a driven V-type atom

Rong Tan, Gao-xiang Li, Zbigniew Ficek

摘要:

我们讨论了一个简单的和实验上可实现的模型创建增强克尔非线性伴随着消失的吸收。该模型考虑了V型原子在强驱动激光和弱探测激光作用下与单模腔场的耦合。在坏腔极限下,我们发现腔场与两个原子跃迁的同时耦合会产生跃迁间的相干性,从而导致量子干涉效应。研究了腔场频率、腔场与原子的耦合常数和原子的衰减常数对线性和三阶(Kerr)非线性极化率的影响。我们预测巨大的克尔非线性消失的吸收和属性这种效果的结合的Purcell效应和腔诱导的量子干涉。

英文摘要:

We discuss a simple and experimentally realizable model for creation of enhanced Kerr nonlinearities accompanied by vanishing absorption. The model involves a V-type atom subjected to a strong drive laser, a weak probe laser and coupled to a single-mode cavity field. Working in the bad-cavity limit, we find that the simultaneous coupling of the cavity field to both atomic transitions creates a coherence between the transitions and thus can lead to quantum interference effects. We investigate the influences of the cavity field frequency, the cavity field-atom coupling constants and the atomic decay constants on the linear and the third-order (Kerr) nonlinear susceptibilities. We predict giant Kerr nonlinearities with vanishing absorption and attribute this effect to the combination of the Purcell effect and the cavity-induced quantum interference.

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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