Exact quantum master equation via the calculus on path integrals.
An exact quantum master equation formalism is constructed for the efficient evaluation of quantum non-Markovian dissipation beyond the weak system-bath interaction regime in the presence of time-dependent external field. A novel truncation scheme is further proposed and compared with other approaches to close the resulting hierarchically coupled equations of motion. The interplay between system-bath interaction strength, non-Markovian property, and required level of hierarchy is also demonstrated with the aid of simple spin-boson systems.
Xu
Rui-Xue
RX
Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei, China. rxxu@ustc.edu.cn
Cui
Ping
P
Li
Xin-Qi
XQ
Mo
Yan
Y
Yan
YiJing
Y