论文标题
在嘈杂的量子隧道问题中的量子相干性和非马克维亚性
Quantum Coherence and non-Markovianity in a Noisy Quantum Tunneling Problem
论文作者
论文摘要
我们研究了量子隧道系统的相干性和非谷物性，其屏障会因电报噪声而波动，并且其能量差距受高斯噪声调节。借助平均方法，分析得出系统动力学，并获得了最初相干和非共晶态的非常有限的参数状态的相干度量和非马克维亚性的分析表达式。我们观察到非马克维亚动力学在库博数量很高的情况下。还发现，系统的连贯性与非马克维亚性动力学之间没有密切的关系，除了这两个区域倾向于在两个初始状态下改变其在中间噪声颜色的行为。
We investigate the coherence and non-Markovianity of a quantum tunneling system whose barrier is fluctuated by a telegraph noise, and its energy gap is modulated by Gaussian noise. With the help of averaging method, the system dynamics are analytically derived, and the analytical expression for coherence measure and non-Markovianity for the very limited parameter regimes for both initially coherent and non-coherent states are obtained. We observe non-Markovian dynamics in a situation where the Kubo number is high. It is also found that there is no strong relation between the coherence of the system and non-Markovianity dynamics except in a region in which these two tend to change their behavior at the intermediate noise color for two initial states.
