Transfer of intensity quantum correlation with twin beams.
We demonstrate experimentally a protocol of transferring nonclassical quantum properties using two pairs of quantum-correlated twin beams in the continuous variable regime. The intensity quantum correlation from one twin beam is transferred to two initially independent idler beams with the help of a displacement transformation. It makes two originally independent beams exhibit an intensity quantum correlation of 0.8 dB below shot-noise level.
State Key Laboratory of Quantum Optics and Quantum Optics Devices, Institute of Opto-Electronics, Shanxi University, Taiyuan 030006, China.
Hongxin
H
Zou
Shuqin
S
Zhai
Rongguo
R
Yang
Daihe
D
Fan
Jiangrui
J
Gao
Junxiang
J
Zhang