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arXiv 1707.07372math.OCquant-ph
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量子系统不变态的Lyapunov稳定性分析

Lyapunov Stability Analysis for Invariant States of Quantum Systems

Muhammad F. Emzir, Ian R. Petersen, Matthew J. Woolley

摘要:

在这篇文章中,我们提出了一个李雅普诺夫稳定性的方法来分析量子系统的密度算子的收敛性。与以前研究的许多使用弱收敛的不变密度算子的收敛性分析方法不同,本文将密度算子集看作巴拿赫空间的一个子集来分析密度算子的收敛性.我们证明了不变密度算子集是闭的和凸的,这意味着不可能有多个孤立的不变密度算子。然后,我们将展示如何通过一个候选的李雅普诺夫算子分析这一套的稳定性。

英文摘要:

In this article, we propose a Lyapunov stability approach to analyze the convergence of the density operator of a quantum system. In contrast to many previously studied convergence analysis methods for invariant density operators which use weak convergence, in this article we analyze the convergence of density operators by considering the set of density operators as a subset of Banach space. We show that the set of invariant density operators is both closed and convex, which implies the impossibility of having multiple isolated invariant density operators. We then show how to analyze the stability of this set via a candidate Lyapunov operator.

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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