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Phys. Rev. A 70, 051802(R) (2004) [4 pages]

Experimental study of the momentum correlation of a pseudothermal field in the photon-counting regime

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Giuliano Scarcelli, Alejandra Valencia, and Yanhua Shih
Department of Physics, University of Maryland, Baltimore County, Baltimore, Maryland 21250, USA

Received 19 July 2004; published 12 November 2004

Thermal (or pseudothermal) radiation has been recently proposed for imaging and interference types of experiments to simulate entangled states. We report an experimental study on the momentum correlation properties of a pseudothermal field in the photon counting regime. The characterization and understanding of such a light source in the context of two-photon physics, especially its similarities and differences compared to entangled two-photon states, is useful in gaining knowledge of entanglement and may help us to assess the real potential of applications of chaotic light in this context.

© 2004 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.70.051802
DOI:
10.1103/PhysRevA.70.051802
PACS:
42.50.Dv