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Phys. Rev. A 71, 053803 (2005) [9 pages]

Entanglement and the Einstein-Podolsky-Rosen paradox with coupled intracavity optical down-converters

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M. K. Olsen and P. D. Drummond
ARC Centre of Excellence for Quantum-Atom Optics, School of Physical Sciences, University of Queensland, Brisbane, Qld 4072, Australia

Received 2 December 2004; published 10 May 2005

We show that two evanescently coupled χ(2) parametric down-converters inside a Fabry-Perot cavity provide a tunable source of quadrature squeezed light, Einstein-Podolsky-Rosen (EPR) correlations and quantum entanglement. Analyzing the operation in the below threshold regime, we show how these properties can be controlled by adjusting the coupling strengths and the cavity detunings. As this can be implemented with integrated optics, it provides a possible route to rugged and stable EPR sources.


©2005 The American Physical Society

URL: http://link.aps.org/doi/10.1103/PhysRevA.71.053803
DOI: 10.1103/PhysRevA.71.053803
PACS: 42.50.Dv, 42.65.Lm, 03.65.Ud

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