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Acta Automatica Sinica

Characteristics Analysis and State Transfer for Non-Markovian Open Quantum Systems

Shuang Cong, Long-Zhen HU, Fei YANG, Jianxiu Liu

Published Mar 21, 2014• 6 citations

Abstract

摘要: 针对时间无卷积的二能级Non-Markovian开放量子系统, 分别研究了环境截断频率、耦合系数和系统振荡频率对系统衰减系数、相干性和纯度的影响, 并根据不同数值对系统性能影响的分析结果来确定合适的系统仿真实验的参数; 基于李雅普诺夫稳定性定理设计了用于系统状态转移的控制场; 在Matlab环境下进行了系统数值仿真实验,研究了Non-Markovian系统自由演化轨迹的特性, 以及在所设计的控制器作用下纯态到纯态的状态转移,并通过性能对比实验, 验证了所提出的量子李雅普诺夫控制方法应用于Non-Markovian系统状态转移的有效性, 同时分析了控制参数、截断频率参数对控制系统性能的影响. 关键词: Non-Markovian开放量子系统 / 系统特性分析 / 量子李雅普诺夫控制 / 状态转移

DOI: 10.3724/sp.j.1004.2013.00360

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