Experimental demonstration of photonic entanglement collapse and revival.
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.
Xu
Jin-Shi
JS
Key Laboratory of Quantum Information, University of Science and Technology of China, CAS, Hefei, 230026, People's Republic of China.
Li
Chuan-Feng
CF
Gong
Ming
M
Zou
Xu-Bo
XB
Shi
Cheng-Hao
CH
Chen
Geng
G
Guo
Guang-Can
GC