Jun Jing, Xinyu Zhao, J. Q. You, Ting Yu
An open quantum system with multiple levels coupled to a bosonic environment
at zero temperature is investigated systematically using the non-Markovian
quantum state diffusion (QSD) method [W. T. Strunz, L.Di\'osi and N. Gisin,
Phys. Rev. Lett. {\bf 82}, 1801 (1999)]. For the first time, we have
established exact time-local QSD equations for a set of interesting multilevel
open systems including the high-spin systems, multiple transition atom models,
and multilevel atom models driven by time-dependent external fields. These
exact QSD equations have paved a way to evaluate the dynamics of the open
multilevel atomic systems in the general non-Markovian regimes without any
approximation.
View original:
http://arxiv.org/abs/1201.6558
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