Statistical properties of two-photon speckles

Statistical properties of two-photon speckles

We experimentally study the statistics of two-photon speckle patterns, obtained when spatially entangled photon pairs are scattered through a random medium. Striking differences arise between the scattering of highly entangled states and almost separable states. Both the purity of the field and the...

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Veröffentlicht in:Physical review. A, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2012-03, Vol.85 (3), Article 033807
Hauptverfasser: Di Lorenzo Pires, H., Woudenberg, J., van Exter, M. P.
Format: Artikel
Sprache:eng
Schlagworte:
Correlation
Entangled states
Photons
Purity
Scattering
Schmidt number
Speckle patterns
Statistics
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Zusammenfassung:We experimentally study the statistics of two-photon speckle patterns, obtained when spatially entangled photon pairs are scattered through a random medium. Striking differences arise between the scattering of highly entangled states and almost separable states. Both the purity of the field and the Schmidt number, which quantifies the number of entangled modes, can be obtained from the visibility of the speckles. We observe nonexponential statistics for both the intensities and the two-photon correlations.
ISSN:1050-2947
1094-1622
DOI:10.1103/PhysRevA.85.033807