Diffraction of Einstein-Podolski-Rosen states with one- and two-copies

Year: 2014

Authors: Ferraz J., Carvalho MAD., Berruezo LP., de Assis PL., Sciarrino F., Padua S.

Autors Affiliation: Univ Fed Minas Gerais, Dept Fis, BR-30123920 Belo Horizonte, MG, Brazil; CAPES Fdn, Minist Educ Brazil, BR-70040020 Brasilia, DF, Brazil; Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy; Ist Nazl Ottica, I-50125 Florence, Italy.

Abstract: We investigate the single slit diffraction pattern of one- and two-pairs of photons obtained from spontaneous parametric down conversion. Our experimental setup generates two classes of states, Einstein-Podolski-Rosen states and near-separable states. For the first class of states the diffraction pattern is anomalous, and is explained by the quantum correlations observed in the transversal position-momentum degree of freedom of down converted photons. The diffraction pattern, associated with the second class of states is similar to the pattern obtained from a classical light source.

Journal/Review: JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS

Volume: 47 (24)      Pages from: 245504-1  to: 245504-8

More Information: This work is part of the Brazilian National Institute for Science and Technology for Quantum Information and was supported by the Brazilian agencies CNPq, CAPES, and FAPEMIG. We acknowledge the EnLight group for very useful discussions and in particular to C H Monken for the work title idea.
KeyWords: entanglement production and manipulation; diffraction of entangled states; multiphoton entangled states
DOI: 10.1088/0953-4075/47/24/245504

Citations: 1
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