Speckle statistics of entangled photons

Avraham Klein, Oded Agam, Boris Spivak

Research output: Contribution to journalArticlepeer-review


We consider the propagation of several entangled photons through an elastically scattering medium and study statistical properties of their speckle patterns. We find the spatial correlations of multiphoton speckles and their sensitivity to changes of system parameters. Our analysis covers both the directed-wave regime, where rays propagate almost ballistically while experiencing small-angle diffusion, and the real-space diffusive regime. We demonstrate that long-range correlations of the speckle patterns dominate experimental signatures for large-aperture photon detectors. We also show that speckle sensitivity depends strongly on the number of photons N in the incoming beam, increasing as N in the directed-wave regime and as N in the diffusive regime.

Original languageEnglish (US)
Article number013828
JournalPhysical Review A
Issue number1
StatePublished - Jul 13 2016

Bibliographical note

Funding Information:
This research was supported by the United States-Israel Binational Science Foundation Grant No. 2012-134 and the Israel Science Foundation Grant No. 302/14.

Publisher Copyright:
© 2016 American Physical Society.

Copyright 2017 Elsevier B.V., All rights reserved.


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