重访中心自旋模型的量子开放系统动力学

Q1 Arts and Humanities

Quanta Pub Date : 2021-09-13 DOI:10.12743/quanta.v10i1.162

S. Bhattacharya, Subhashis Banerjee

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引用次数: 4

摘要

在这项工作中，我们从费米子场的角度重新审视了开放量子系统的理论。具体来说，我们集中在一个中心自旋半粒子与一个自旋浴相互作用的动力学。我们计算了中心自旋的精确简化动力学，并据此构造了克劳斯算符。进一步，构造了与简化动力学相对应的精确Lindblad型正则主方程。我们还从中心自旋的简化动力学的背景下简要地谈到了非马尔可夫性的方面。广达2021;10: 55 - 64。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Revisiting the Quantum Open System Dynamics of Central Spin Model

In this work, we revisit the theory of open quantum systems from the perspective of fermionic baths. Specifically, we concentrate on the dynamics of a central spin half particle interacting with a spin bath. We have calculated the exact reduced dynamics of the central spin and constructed the Kraus operators in relation to that. Further, the exact Lindblad type canonical master equation corresponding to the reduced dynamics is constructed. We have also briefly touched upon the aspect of non-Markovianity from the backdrop of the reduced dynamics of the central spin.Quanta 2021; 10: 55–64.

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来源期刊

Quanta Arts and Humanities-History and Philosophy of Science

CiteScore

1.30

自引率

0.00%

发文量

审稿时长

12 weeks

期刊介绍： Quanta is an open access academic journal publishing original research and review articles on foundations of quantum mechanics, mathematical physics and philosophy of science.