Microscopic theory of indistinguishable single-photon emission from a quantum dot coupled to a cavity: The role of non-Markovian phonon-induced decoherence
Microscopic theory of indistinguishable single-photon emission from a quantum dot coupled to a cavity: The role of non-Markovian phonon-induced decoherence
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DOI：
10.1103/physrevb.87.081308
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发表时间：
2012-03
影响因子：
3.7
通讯作者：
P. Kaer;P. Lodahl;A. Jauho;J. Mørk
中科院分区：
文献类型：
--
作者：
P. Kaer;P. Lodahl;A. Jauho;J. Mørk
和电子-光子相互作用是平等的。分析是基于一个精确对角化（艾德）技术，保留固有的非马尔可夫性质的声子相互作用的所有订单的声子耦合。我们的结果与包括声子相互作用的标准近似方法[13，26{29]形成对比，即二阶展开和唯象纯退相描述。图1（c）和（d）显示了这种比较。近似结果与艾德结果之间的偏差很大，表明在马尔可夫方法中，水库中的记忆和反作用效应不能被忽略。
and on equal footing with the electron-photon interaction. The analysis is based on an exact diagonalization (ED) technique, retaining the inherent non-Markovian nature of the phonon interaction to all orders in the phonon coupling. Our ndings are contrasted to standard approximate approaches for including phonon interactions [13, 26{29], namely second order expansions and phenomenological pure dephasing descriptions. Figures 1(c) and (d) show such a comparison. The deviations between the approximate and the ED results are signicant, demonstrating that memory and back-action eects in the reservoir cannot be neglected, as in Markovian approaches.