Controlling the interference of single photons emitted by independent atomic sources
Alessandro Ceré, Victor Leong, Sandoko Kosen +3 more
Hong-Ou-Mandel interference between independent sources is a fundamental primitive of many quantum communication and computation protocols. We present a study of the Hong-Ou-Mandel interference of single photons generated via two different physical processes by two independent atomic systems: scattering by a single atom, and parametric generation via four-wave mixing in a cloud of cold atoms. By controlling the coherence time and central frequency of the heralded single photons generated by four-wave mixing we observe quantum beat and a varying degree of interference.
Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE•Sep 1, 2015•0 citations