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二次哈密顿量的不变量子态

Invariant Quantum States of Quadratic Hamiltonians.

作者信息

Dodonov Viktor V

机构信息

Institute of Physics, University of Brasilia, P.O. Box 04455, Brasilia 70919-970, DF, Brazil.

International Center for Physics, University of Brasilia, Brasilia 70919-970, DF, Brazil.

出版信息

Entropy (Basel). 2021 May 19;23(5):634. doi: 10.3390/e23050634.

DOI:10.3390/e23050634
PMID:34069501
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8161199/
Abstract

The problem of finding covariance matrices that remain constant in time for arbitrary multi-dimensional quadratic Hamiltonians (including those with time-dependent coefficients) is considered. General solutions are obtained.

摘要

考虑了寻找对于任意多维二次哈密顿量（包括那些具有时间依赖系数的哈密顿量）在时间上保持恒定的协方差矩阵的问题。得到了一般解。

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本文引用的文献

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Differential Parametric Formalism for the Evolution of Gaussian States: Nonunitary Evolution and Invariant States.高斯态演化的微分参数形式主义：非酉演化与不变态
Entropy (Basel). 2020 May 23;22(5):586. doi: 10.3390/e22050586.
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Quantum Fidelity for Arbitrary Gaussian States.任意高斯态的量子失准度。
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