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arXiv quant-ph/0208175quant-ph
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自伴Lindblad算子的Lindbladian演化为平均随机酉演化

Lindbladian Evolution with Selfadjoint Lindblad Operators as Averaged Random Unitary Evolution

D. Salgado, J. L. Sanchez-Gomez

摘要:

它示出了如何任何Lindbladian演化与自伴Lindblad运营商,无论是马尔可夫或nonMarkovian,可以被理解为平均随机酉演化。数学和物理后果进行了分析。首先提出了一种求解这类主方程的简便快速的方法,并以多光子共振Jaynes-Cummings模型在行波近似下的相位阻尼主方程为例进行了详细的说明。一些内在的退相干模型在文献中的推广。在同样的理论指导下,我们提出了推广Jaynes-Cummings模型的建议,其预言与腔QED和离子阱中的实验结果是一致的。还包括随机动态崩溃模型的比较。

英文摘要:

It is shown how any Lindbladian evolution with selfadjoint Lindblad operators, either Markovian or nonMarkovian, can be understood as an averaged random unitary evolution. Both mathematical and physical consequences are analyzed. First a simple and fast method to solve this kind of master equations is suggested and particularly illustrated with the phase-damped master equation for the multiphoton resonant Jaynes-Cummings model in the rotating-wave approximation. A generalization to some intrinsic decoherence models present in the literature is included. Under the same philosophy a proposal to generalize the Jaynes-Cummings model is suggested whose predictions are in accordance with experimental results in cavity QED and in ion traps. A comparison with stochastic dynamical collapse models is also included.

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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