Multi-photon interference and temporal distinguishability of photons

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Original languageEnglish
Pages (from-to)5033-5058
Journal / PublicationInternational Journal of Modern Physics B
Issue number30
Publication statusPublished - 10 Dec 2007
Externally publishedYes


A number of recent interference experiments involving multiple photons are reviewed. These experiments include generalized photon bunching effects, generalized Hong-Ou-Mandel interference effects and multi-photon interferometry for demonstrations of multi-photon de Broglie wavelength. The multi-photon states used in these experiments are from two pairs of photons in parametric down-conversion. We find that the size of the interference effect in these experiments, characterized by the visibility of the interfer-ence pattern, is governed by the degree of distinguishability among different pairs of photons. Based on this discovery, we generalize the concept of multi-photon temporal distinguishability and relate it to a number of multi-photon interference effects. Finally, we make an attempt to interpret the coherence theory by multi-photon interference via the concept of temporal distinguishability of photons. © World Scientific Publishing Company.

Research Area(s)

  • Distinguishability, Interference, Photon counting

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