Experimental Demonstration of Photonic Entanglement Collapse and Revival
Jin‐Shi Xua, Chuan‐Feng Lia b, Ming Gonga b, Xu‐Bo Zoua b, Cheng-Hao Shia b, Geng Chena b, Guang‐Can Guoa b
- aKey Laboratory of Quantum Information, University of Science and Technology of China, CAS, Hefei, 230026, People's Republic of China
- bKey Laboratory of Quantum Information, University of Science and Technology of China, CAS, Hefei, 230026, People’s Republic of China
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Abstract
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.
TL;DRIt is shown that entanglement can be revived even after it suffers from sudden death, and a maximally revived state is shown to violate a Bell's inequality with 4.1 standard deviations which verifies its quantum nature. (Semantic Scholar)