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Paper detail

Perturbation Methods for Non-Markovian Quantum State Diffusion Equation

Two perturbation methods for the non-Markovian quantum state diffusion (NMQSD) equation are investigated. The first perturbation method under investigation is based on a functional expansion of the NMQSD equation, while the second one expands the NMQSD equation in terms of the coupling strength. We have compared the advantages of the two methods based on bipartite systems where the accuracy of both perturbation methods can be examined by comparing the approximations with the exact solutions. Additionally, we provide an analytical solution for a special family of system's initial states, and the entanglement dynamics is discussed based on this solution.

preprint2014arXivOpen access
Jie XuXinyu ZhaoJun JingLian-Ao WuTing Yu
quant-ph
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Jie XuXinyu ZhaoJun JingLian-Ao WuTing Yu

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