Non-degenerated nonclassical photon pairs in a hot atomic ensemble.
We experimentally demonstrate the generation of non-degenerate nonclassical paired photons in a hot atomic ensemble using off-axis four-wave mixing. The time-resolved second-order correlated function between the Stokes photon and the anti-Stokes photon is given. The two-photon correlation between the photons obtained in this experiment is 1.87+/- 0.04, which leads to the violation of Cauchy-Schwarz inequality by a factor of 1.69+/- 0.14.
Chen
Qun-Feng
QF
Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei, 230026, People's Republic of China.
Shi
Bao-Sen
BS
Feng
Min
M
Zhang
Yong-Sheng
YS
Guo
Guang-Can
GC