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arXiv · 1406.1753

Approach to solving spin-boson dynamics via non-Markovian quantum trajectories

Zeng-Zhao Li·Cho-Tung Yip·Hai-Yao Deng·Mi Chen·Ting Yu·J. Q. You·Chi-Hang Lam
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Abstract

We develop a systematic and efficient approach for numerically solving the non-Markovian quantum state diffusion equations for open quantum systems coupled to an environment up to arbitrary orders of noises or coupling strengths. As an important application, we consider a real-time simulation of a spin-boson model in a strong coupling regime that is difficult to deal with using conventional methods. We show that the non-Markovian stochastic Schrödinger equation can be efficiently implemented as a real--time simulation for this model, so as to give an accurate description of spin-boson dynamics beyond the rotating-wave approximation.

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Zeng-Zhao Li, Cho-Tung Yip, Hai-Yao Deng, Mi Chen, Ting Yu, J. Q. You, Chi-Hang Lam. 2014-08-28. Approach to solving spin-boson dynamics via non-Markovian quantum trajectories. https://doi.org/10.1103/physreva.90.022122

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