arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 0908.3952quant-ph
收藏

开放系统对慢光和电磁感应透明的影响

Open system effects on slow light and electromagnetically induced transparency

Jonas Tidström, Marie Ericsson, Erik Sjöqvist, L. Mauritz Andersson

摘要:

分析了马尔可夫环境对三能级$Λ$系统相干特性的影响。采用相干矢量形式,导出了林德布拉德方程的矢量形式。与来自上态的衰变通道一起,研究了作用于两个下态的子空间的开放系统通道,即,去极化、去相位和振幅阻尼通道。我们推导了相干矢量和伴随的光学极化率的解析表达式,并分析了不同通道对光学响应的影响。这种响应依赖于开放系统相互作用的类型,甚至可以获得增益。我们还提出了一个几何可视化的相干矢量作为一种援助,以了解系统的响应。

英文摘要:

The coherence properties of a three-level $Λ$-system influenced by a Markovian environment are analyzed. A coherence vector formalism is used and a vector form of the Lindblad equation is derived. Together with decay channels from the upper state, open system channels acting on the subspace of the two lower states are investigated, i.e., depolarization, dephasing, and amplitude damping channels. We derive an analytic expression for the coherence vector and the concomitant optical susceptibility, and analyze how the different channels influence the optical response. This response depends non-trivially on the type of open system interaction present, and even gain can be obtained. We also present a geometrical visualization of the coherence vector as an aid to understand the system response.

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。

↑