Phys. Rev. Lett. 87, 123602 (2001) [4 pages]Role of Entanglement in Two-Photon ImagingReceived 9 April 2001; published 30 August 2001 The use of entangled photons in an imaging system can exhibit effects that cannot be mimicked by any other two-photon source, whatever the strength of the correlations between the two photons. We consider a two-photon imaging system in which one photon is used to probe a remote (transmissive or scattering) object, while the other serves as a reference. We discuss the role of entanglement versus correlation in such a setting, and demonstrate that entanglement is a prerequisite for achieving distributed quantum imaging. © 2001 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.87.123602
DOI:
10.1103/PhysRevLett.87.123602
PACS:
42.50.Dv, 42.65.Ky
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