arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1701.07597quant-ph
收藏

二能级系统非马尔可夫动力学中的记忆效应和伪模振幅

Memory effect and pseudomode amplitude in non-Markovian dynamics of a two level system

Yuta Ohyama, Yasuhiro Tokura

摘要:

利用伪模方法研究了二能级原子的非马尔可夫动力学。由于非马尔可夫动力学的记忆效应,原子在较晚的时间从库中接收到反馈信息和激发能量,从而导致比马尔可夫动力学更复杂的行为。利用伪模方法,将原子的非马尔可夫动力学映射为原子的马尔可夫动力学和伪模的马尔可夫动力学。通过对马尔可夫动力学的伪模方法和量子跳跃方法的研究,我们从物理上直观地了解了非马尔可夫动力学的记忆效应。它表明了一个简单的物理意义的记忆时间的非马尔可夫水库。

英文摘要:

We study non-Markovian dynamics of a two level atom using pseudomode method. Because of the memory effect of non-Markovian dynamics, the atom receives back information and excited energy from the reservoir at a later time, which causes more complicated behaviors than Markovian dynamics. With pseudomode method, non-Markovian dynamics of the atom can be mapped into Markovian dynamics of the atom and pseudomode. We show that by using pseudomode method and quantum jump approach for Markovian dynamics, we get a physically intuitive insight into the memory effect of non-Markovian dynamics. It suggests a simple physical meaning of the memory time of a non-Markovian reservoir.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑