论文标题
中央自旋系统的量子相关性和速度限制
Quantum correlations and speed limit of central spin system
论文作者
论文摘要
在本文中，我们考虑了与自旋浴相互作用并讨论其动力学特性的单个和两量的中央自旋系统。我们考虑相互作用和非相互作用的自旋浴的情况，并研究进化的量子速度极限（QSL）时间。分析了自旋浴的大小对单个量子中心自旋模型的量子速度极限的影响。我们估计了（非）相互作用两个中心旋转矩的量子相关性，并将其动力学行为与QSL时间的动力学行为进行比较。我们展示了如何利用QSL时间来分析量子相关的动力学。
In this article, we consider single, and two-qubit central spin systems interacting with spin baths and discuss their dynamical properties. We consider the cases of interacting and non-interacting spin baths and investigate the quantum speed limit (QSL) time of evolution. The impact of the size of the spin bath on the quantum speed limit for a single qubit central spin model is analyzed. We estimate the quantum correlations for (non-)interacting two central spin qubits and compare their dynamical behaviour with that of QSL time under various conditions. We show how QSL time could be availed to analyze the dynamics of quantum correlations.
