由二次哈密顿量描述的驱动耗散系统的精确密度矩阵元。

Exact density matrix elements for a driven dissipative system described by a quadratic Hamiltonian.

作者信息

Saedi Sh, Kheirandish F

机构信息

Department of Physics, University of Kurdistan, P.O. Box 66177-15175, Sanandaj, Iran.

出版信息

Sci Rep. 2021 Aug 30;11(1):17388. doi: 10.1038/s41598-021-96787-6.

DOI:10.1038/s41598-021-96787-6

PMID:34462481

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC8405690/

Abstract

For a prototype quadratic Hamiltonian describing a driven, dissipative system, exact matrix elements of the reduced density matrix are obtained from a generating function in terms of the normal characteristic functions. The approach is based on the Heisenberg equations of motion and operator calculus. The special and limiting cases are discussed.

摘要

对于描述一个受驱动的耗散系统的原型二次哈密顿量，约化密度矩阵的精确矩阵元可通过一个生成函数根据正态特征函数得到。该方法基于海森堡运动方程和算符演算。文中讨论了特殊情况和极限情况。