Hong-Ou-Mandel interference between triggered and heralded single photons from separate atomic systems
arXiv:1504.00818 · doi:10.1103/PhysRevA.91.063829
Abstract
We present 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. Without any spectral filtering, we observe a visibility of V=624%. After correcting for accidental coincidences, we obtain V=936%. The observed interference demonstrates the compatibility of the two sources, forming the basis for an efficient quantum interface between different physical systems.
arXiv comment5 pages, 5 figures
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