Experimental Demonstration of Photonic Entanglement Collapse and Revival
Experimental Demonstration of Photonic Entanglement Collapse and Revival
复制标题
光子纠缠崩溃与复兴的实验演示
DOI：
10.1103/physrevlett.104.100502
复制
发表时间：
2010-03-12
影响因子：
8.6
通讯作者：
Guo, Guang-Can
中科院分区：
文献类型：
--
作者：
Xu, Jin-Shi;Li, Chuan-Feng;Guo, Guang-Can
在非马尔可夫环境中，我们证明了不同偏振纠缠光子态的纠缠动力学的崩溃和复苏的特点。利用全光学实验装置，我们证明了纠缠即使在突然死亡后也可以复活。一个最大的复苏状态被证明违反贝尔不等式与4.1标准偏差，验证了它的量子性质。在这个实验中观察到的复活现象提供了一个有趣的角度纠缠动力学。
We demonstrate the collapse and revival features of the entanglement dynamics of different polarization-entangled photon states in a non-Markovian environment. Using an all-optical experimental setup, we show that entanglement can be revived even after it suffers from sudden death. A maximally revived state is shown to violate a Bell's inequality with 4.1 standard deviations which verifies its quantum nature. The revival phenomenon observed in this experiment provides an intriguing perspective on entanglement dynamics.