磁环境与单量子点局部相互作用的马尔可夫性与记忆

A. R. Mohammed, T. El-Shahat, N. Metwally
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引用次数: 0

摘要

在这篇文章中,我们证明了将环境马尔可夫性/记忆变为非马尔可夫性/无记忆是可能的,反之亦然。通过考虑一个单一的两能级量子点与磁场局部相互作用的系统,可以澄清这个想法。环境的马尔可夫性取决于两个系统之间的耦合是否依赖于/不依赖于时间,以及系统是否有阻尼。丢失/获得信息的数量及其置乱取决于量子点水平之间的能量间隙间距,其中歪斜信息和超时有序被用作这两种现象的量词。在热方面,人们可以将环境属性冻结为内存/无内存,我们的结果表明,随着温度的升高,交换信息的数量及其混乱是恒定的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Markovianity and the memory of magnetic environment interacting locally with a single quantum dot
In this manuscript, we show that it is possible to change the environment Markovianity/memory into non-Markovianity/memoryless, and vice versa. This idea is clarified by considering a system of a single two level quantum dot interacts locally with a magnetic field. The Markovianity of the environment depends on whether the coupling between the two systems is time dependent/independent and whether the systems suffering from damping or not. The amount of the lost/gained information and its scrambling depends on the energy gap spacing between the levels of the quantum dot, where the Skew information and the out-of-time ordered are used as quantifiers for both phenomena. Thermally, one can freeze the environment properties to be memory/ memoryless, where our results show the amount of exchanging information and its scrambling are constant as the temperature increases.
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