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arXiv quant-ph/9807080quant-ph
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开放量子系统随机波函数方法中的海森堡图像算符

Heisenberg picture operators in the stochastic wave function approach to open quantum systems

H. P. Breuer, B. Kappler, F. Petruccione

摘要:

提出了一种计算开放量子系统多时间关联函数的快速模拟算法。证明了任何“解开”量子主方程的随机过程都可以用于计算约化海森堡图像算子的矩阵元,从而通过将随机过程扩展到双希尔伯特空间来计算多时间关联函数.随机模拟算法的数值性能进行了研究,通过一个标准的例子。

英文摘要:

A fast simulation algorithm for the calculation of multitime correlation functions of open quantum systems is presented. It is demonstrated that any stochastic process which ``unravels'' the quantum Master equation can be used for the calculation of matrix elements of reduced Heisenberg picture operators, and thus for the calculation of multitime correlation functions, by extending the stochastic process to a doubled Hilbert space. The numerical performance of the stochastic simulation algorithm is investigated by means of a standard example.

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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