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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 13 — Jul. 1, 2006
  • pp: 2057–2059

Tunable spatial decoherers for polarization-entangled photons

Graciana Puentes, Dirk Voigt, Andrea Aiello, and J. P. Woerdman  »View Author Affiliations


Optics Letters, Vol. 31, Issue 13, pp. 2057-2059 (2006)
http://dx.doi.org/10.1364/OL.31.002057


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Abstract

We report a novel controllable source of spatial decoherence for twin photons, based upon commercially available wedge depolarizers. This allows us to convert the polarization-entangled singlet state into a tunable mixed state. A full characterization of this mixed state, by means of quantum tomography, shows that such a spatial decoherer can be used for synthesizing Werner-like states on demand.

© 2006 Optical Society of America

OCIS Codes
(230.0230) Optical devices : Optical devices
(230.5440) Optical devices : Polarization-selective devices
(270.0270) Quantum optics : Quantum optics

ToC Category:
Quantum Optics

History
Original Manuscript: January 26, 2006
Revised Manuscript: April 10, 2006
Manuscript Accepted: April 11, 2006

Citation
Graciana Puentes, Dirk Voigt, Andrea Aiello, and J. P. Woerdman, "Tunable spatial decoherers for polarization-entangled photons," Opt. Lett. 31, 2057-2059 (2006)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-31-13-2057

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