Monte Carlo methods for real‐time quantum dynamics of dissipative systems
Monte Carlo methods for real‐time quantum dynamics of dissipative systems
复制标题
耗散系统实时量子动力学的蒙特卡罗方法
DOI：
10.1063/1.453793
复制
发表时间：
1988
期刊：
影响因子：
--
通讯作者：
P. Wolynes
中科院分区：
文献类型：
--
作者：
R. Cline;P. Wolynes
本文提出了一种基于准经典朗之万方程的数值路径积分方法，用于计算与耗散池耦合系统的量子力学性质。通过用量子涨落修饰准经典路径，得到了完全量子力学的结果。丢番图积分的使用已被比较的波动变量的蒙特卡罗抽样。几个模型系统的结果。
A numerical path integral technique based upon a quasiclassical Langevin equation is presented for the calculation of quantum mechanical properties of a system coupled to a dissipative bath. Fully quantum mechanical results are obtained by decorating quasiclassical paths with quantum fluctuations. The use of diophantine integration has been compared to Monte Carlo sampling of the fluctuation variables. Results are presented for several model systems.