Nonlocal compensation of pure phase objects with entangled photons

Journal Article · Sat Oct 15 00:00:00 EDT 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.84.043817· OSTI ID:22093373

Cialdi, Simone; Brivio, Davide; Tesio, Enrico; Paris, Matteo G. A. ^[1]

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1. Dipartimento di Fisica dell'Universita degli Studi di Milano, I-20133 Milano (Italy) and INFN, Sezione di Milano, I-20133 Milano (Italy)

We suggest and demonstrate a scheme for coherent nonlocal compensation of pure phase objects based on two-photon polarization and momentum entangled states. The insertion of a single phase object on one of the beams reduces the purity of the overall detected state and the amount of shared entanglement, whereas the original entanglement can be retrieved by adding a suitable phase object on the other beam. In our setup polarization and momentum entangled states are generated by spontaneous parametric downconversion and then purified using a programmable spatial light modulator, which may be also used to impose arbitrary space-dependent phase functions on the beams.

• OSTI ID: 22093373
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 4 Vol. 84; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

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