Bellomo B, Lo Franco R, Compagno G
Dipartimento di Scienze Fisiche ed Astronomiche, Università di Palermo, via Archirafi 36, 90123 Palermo, Italy.
Phys Rev Lett. 2007 Oct 19;99(16):160502. doi: 10.1103/PhysRevLett.99.160502. Epub 2007 Oct 17.
A procedure that allows us to obtain the dynamics of N independent bodies each locally interacting with its own reservoir is presented. It relies on the knowledge of single-body dynamics and it is valid for any form of environment noise. It is then applied to the study of non-Markovian dynamics of two independent qubits, each locally interacting with a zero-temperature reservoir. It is shown that, although no interaction is present or mediated between the qubits, there is a revival of their entanglement, after a finite period of time of its complete disappearance.
我们提出了一种程序，该程序允许我们获得 N 个独立物体各自与其自身的热库进行局部相互作用的动力学。它依赖于单体动力学知识，并且对于任何形式的环境噪声都是有效的。然后将其应用于研究两个独立量子比特的非马尔可夫动力学，每个量子比特都与零温度热库进行局部相互作用。结果表明，尽管量子比特之间不存在相互作用或相互作用的介导，但在其纠缠完全消失的有限时间段后，它们的纠缠会复苏。
