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Phys. Rev. A 78, 010304(R) (2008) [4 pages]

Detection of transverse entanglement in phase space

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D. S. Tasca*, S. P. Walborn, and P. H. Souto Ribeiro
Instituto de Física, Universidade Federal do Rio de Janeiro, Caixa Postal 68528, Rio de Janeiro, RJ 21941-972, Brazil

F. Toscano
Fundação Centro de Ciências e Educação Superior a Distância do Estado do Rio de Janeiro, 20943-001 Rio de Janeiro, Brazil and Instituto de Física, Universidade Federal do Rio de Janeiro, Caixa Postal 68528, Rio de Janeiro, RJ 21941-972, Brazil

Received 5 March 2008; published 8 July 2008

Transverse entanglement between pairs of photons can be detected through intensity correlation measurements in the near and far fields. We show theoretically and experimentally that at intermediate zones, it is also possible to detect transverse entanglement performing only intensity correlation measurements. Our results are applicable to a number of physical systems.

© 2008 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.78.010304
DOI:
10.1103/PhysRevA.78.010304
PACS:
42.50.Ex, 03.65.Ud, 03.67.Bg, 42.50.Xa

*tasca@if.ufrj.br

 
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