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

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.

4 pages, 5 figures, submitted to Phys.Rev.A (on hold, waiting for Reply)

References in corpus (4)

• The Mobius function is strongly orthogonal to nilsequences
• Coherence measures for heralded single-photon sources
• Photon bunching in parametric down-conversion with continuous wave excitation
• Characterizing heralded single-photon sources with imperfect measurement devices

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• Time-resolved second-order autocorrelation function of parametric downconversion