Generation of a Non-Classical Correlated Photon Pair via Spontaneous Four-Wave Mixing in a Cold Atomic Ensemble

Andrew R. Ferdinand, Alejandro Manjavacas, F. E. Becerra

Andrew R. Ferdinand, Xijie Luo, F. E. Becerra

Jiho Park, Han Seb Moon

Xiaosong Lu, Qunfeng Chen, Bao-Sen Shi +1 more

Counter propagated write and read lasers can be used to generate non-classical correlated photon pairs in an atomic ensemble. We experimentally investigate how the detuning of the write laser affects the non-classical correlation function between the Stokes photon and the anti-Stokes photon, which are generated via a spontaneous four-wave mixing process using an off-axis configuration in a cold 85 Rb atomic ensemble. The change of the time-resolved second-order correlated function between the Stokes and anti-Stokes photons is presented. The experimental result suggests that a suitable choice of detuning should be considered in such an experiment.

Guo Guang-Can

Generation of non-classical correlated photon pairs via spontaneous four-wave-mixing(FWM) in cold atomic ensembles is a promising field in quantum information process.In this paper we report on the realization of stimulated four-wave-mixing based on the cold 85Rb atoms,which is prepared in a magnetic-optical trap.We have observed the spatial distribution of the output parametric field,and briefly discussed how the intensities and frequencies of the three input beams affect this process.Temporal sequences modulation is used to control the interaction for the subsequent work of generating the non-classical correlated photon pairs.

原浩翔 YUAN Hao-xiang, 葛伟 GE Wei, 田龙 Tian Long +3 more