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arXiv · 0911.1478

Comment on "Coherence measures for heralded single-photon sources"

Stefano Bettelli
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Abstract

A recent Brief Report [Phys. Rev. A 79, 035801 (2009)] investigates two figures of merit for heralded photon sources based on spontaneous parametric down-conversion with a continuous pump, namely the time-averaged temporal coherence between the signal and idler beams and the time-averaged conditioned second-order degree of coherence for photons in the heralded arm. However, contrary to what is claimed, no one-arm second-order effect is actually measured.

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Stefano Bettelli. 2009-11-09. Comment on "Coherence measures for heralded single-photon sources". https://doi.org/10.1103/physreva.81.037801

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