Continuous variable polarization entanglement, experiment and analysis

Bowen, W. P., Treps, N., Schnabel, R., Ralph, T. C. and Lam, P. K. (2003) Continuous variable polarization entanglement, experiment and analysis. Journal of Optics B: Quantum and Semiclassical Optics, 5 4: S467-S478. doi:10.1088/1464-4266/5/4/352

Author Bowen, W. P.
Treps, N.
Schnabel, R.
Ralph, T. C.
Lam, P. K.
Title Continuous variable polarization entanglement, experiment and analysis
Journal name Journal of Optics B: Quantum and Semiclassical Optics   Check publisher's open access policy
ISSN 1464-4266
Publication date 2003
Sub-type Article (original research)
DOI 10.1088/1464-4266/5/4/352
Volume 5
Issue 4
Start page S467
End page S478
Total pages 12
Editor Arimondo, E.
Place of publication United Kingdom
Publisher Claire Blay
Collection year 2003
Language eng
Subject C1
240201 Theoretical Physics
780102 Physical sciences
Abstract We generate and characterize continuous variable polarization entanglement between two optical beams. We first produce quadrature entanglement, and by performing local operations we transform it into a polarization basis. We extend two entanglement criteria, the inseparability criteria proposed by Duan et al (2000 Phys. Rev. Lett. 84 2722) and the Einstein–Podolsky–Rosen (EPR) paradox criteria proposed by Reid and Drummond (1988 Phys. Rev. Lett. 60 2731), to Stokes operators; and use them to characterize the entanglement. Our results for the EPR paradox criteria are visualized in terms of uncertainty balls on the Poincaré sphere. We demonstrate theoretically that using two quadrature entangled pairs it is possible to entangle three orthogonal Stokes operators between a pair of beams, although with a bound √3 times more stringent than for the quadrature entanglement.
Keyword Squeezing
quantum optics
Stokes operator
Physics, Applied
Separability Criterion
Q-Index Code C1

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Created: Wed, 15 Aug 2007, 01:51:53 EST