Theory of open quantum systems
Theory of open quantum systems
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DOI：
10.1063/1.1474579
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发表时间：
2002-05
影响因子：
4.4
通讯作者：
R. Xu;Yijing Yan
中科院分区：
文献类型：
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作者：
R. Xu;Yijing Yan
量子耗散理论是通过在二阶累积量水平上严格处理系统-浴相互作用来构建的，以减少动力学和初始规范边界条件。该理论对于任意浴相关函数和依赖于时间的外部驱动场都是有效的，并且满足任何温度下的相关详细平衡关系。一般公式在驱动布朗振荡器系统中采用特别简单的形式，其中相关的驱动耗散效应可以根据局部场校正来精确解释。还结合现有理论对一类广泛使用的忽略浴色散引起耗散的唯象量子主方程进行了评论。
A quantum dissipation theory is constructed with the system–bath interaction being treated rigorously at the second-order cumulant level for both reduced dynamics and initial canonical boundary condition. The theory is valid for arbitrary bath correlation functions and time-dependent external driving fields, and satisfies correlated detailed-balance relation at any temperatures. The general formulation assumes a particularly simple form in driven Brownian oscillator systems in which the correlated driving-dissipation effects can be accounted for exactly in terms of local-field correction. Remarks on a class of widely used phenomenological quantum master equations that neglects the bath dispersion-induced dissipation are also made in contact with the present theory.