论文标题
在存在状态依赖浴的情况下量子相关的时间演变
Time evolution of quantum correlations in presence of state dependent bath
论文作者
论文摘要
新兴的量子技术在很大程度上依赖于对开放量子系统中动力学的理解。在天生的近似值中，通常会忽略最初的系统浴力相关性，这些相关性可能在强的耦合体系和量子状态准备中违反。为了理解初始系统托架相关性的影响，我们研究了这些初始相关性以及量子位之间的分离距离的程度，影响量子纠缠和连贯性的动力学。结果表明，在低温下，初始相关性在高温下没有作用，这些相关性强烈影响动态。此外，我们已经表明，在集体浴场的存在下，量子位之间的分离距离有助于长期保持纠缠和连贯性。
The emerging quantum technologies heavily rely on the understanding of dynamics in open quantum systems. In the Born approximation, the initial system-bath correlations are often neglected which can be violated in the strong coupling regimes and quantum state preparation. In order to understand the influence of initial system-bath correlations, we study the extent to which these initial correlations and the distance of separation between qubits influence the dynamics of quantum entanglement and coherence. It is shown that at low temperatures, the initial correlations have no role to play while at high temperatures, these correlations strongly influence the dynamics. Furthermore, we have shown that distance of separation between the qubits in presence of collective bath helps to maintain entanglement and coherence at long times.
