DISSIPATIVE QUANTUM DYNAMICS WITH A LINDBLAD FUNCTIONAL
DISSIPATIVE QUANTUM DYNAMICS WITH A LINDBLAD FUNCTIONAL
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DOI：
10.1103/physrevlett.79.3101
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发表时间：
1997-10
影响因子：
8.6
通讯作者：
Shiwu Gao
中科院分区：
文献类型：
--
作者：
Shiwu Gao
提出一种Lindblad算符来描述具有线性耗散的开放系统的量子动力学。它的功能形式确定的基础上微观Caldeira-Leggett模型。它产生了一个新的主方程，保持积极的密度演化在短时间内，并在高，低温度下接近平衡。作为一个例子，新的主方程被应用于研究飞秒动力学的振动弛豫和解吸在金属表面。
A Lindblad operator is proposed to describe quantum dynamics of an open system with linear dissipation. Its functional form is determined based on the microscopic Caldeira-Leggett model. It yields a new master equation which preserves positive density evolution on short times and approaches equilibrium at high and low temperatures. The new master equation is applied as an example to study the femtosecond dynamics of vibrational relaxation and desorption at a metal surface.