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

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.

5 pages, 5 figures

References in corpus (7)

• The Quantum Internet
• Experimental quantum teleportation
• Quantum Beat of Two Single Photons
• Strong interaction between light and a single trapped atom without a cavity
• Experimental interference of independent photons
• Direct photonic coupling of a semiconductor quantum dot and a trapped ion
• Spectral analysis for cascade-emission-based quantum communication in atomic ensembles

Cited by in corpus (2)

• Suppression of single cesium atom heating in a microscopic optical dipole trap for demonstration of an 852nm triggered single-photon source
• Amplification of nanosecond laser pulse chain via dynamic injection locking of laser diode