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arXiv · 1504.00818

Hong-Ou-Mandel interference between triggered and heralded single photons from separate atomic systems

Victor Leong·Sandoko Kosen·Bharath Srivathsan·Gurpreet Kaur Gulati·Alessandro Ceré·Christian Kurtsiefer
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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=62$\pm$4%. After correcting for accidental coincidences, we obtain V=93$\pm$6%. The observed interference demonstrates the compatibility of the two sources, forming the basis for an efficient quantum interface between different physical systems.

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Victor Leong, Sandoko Kosen, Bharath Srivathsan, Gurpreet Kaur Gulati, Alessandro Ceré, Christian Kurtsiefer. 2015-04-03. Hong-Ou-Mandel interference between triggered and heralded single photons from separate atomic systems. https://doi.org/10.1103/physreva.91.063829

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