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

Stefano Bettelli

doi:10.1103/PhysRevA.81.037801

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

Quantum Physics 2011-04-15 v1

Authors: 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.

Keywords

quantum optics

Cite

@article{arxiv.0911.1478,
  title  = {Comment on "Coherence measures for heralded single-photon sources"},
  author = {Stefano Bettelli},
  journal= {arXiv preprint arXiv:0911.1478},
  year   = {2011}
}

Comments

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

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