Bright continuous-variable entanglement from the quantum optical dimer

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Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.3/81161

Title: Bright continuous-variable entanglement from the quantum optical dimer
Author(s): Mallon, M. J.; Reid, M. D.; Olsen, M. K.
Abstract: By calculating correlation spectra of the output fields, we show theoretically that two evanescently coupled x^2 second harmonic generators inside a Fabry-Perot cavity provide a tunable source of quadrature squeezed light, Einstein-Podolsky-Rosen correlations and quantum entanglement. Unlike systems using coupled downconverters, second harmonic generation has no oscillation threshhold, so that the entangled fields become macroscopically occupied as soon as the pumping fields are turned on. This system also gives two frequencies at which the entangled fields can have macroscopic intensity. We show how the entanglement properties can be controlled by adjusting the pumping, the coupling strengths and the cavity detunings.
Publication type: Journal article
Source: Journal of Physics B: Atomic, Molecular and Optical Physics, Vol. 41, no. 1 (Jan 2008), article no. 015501
Publication year: 2008
FOR Code(s): 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics; 0205 Optical Physics
Keyword(s): Harmonic generation; Light sources; Optical pumping; Quantum optics; Macroscopic intensity; Quantum entanglement; Dimers
Publisher: Institute of Physics Publishing
ISSN: 0953-4075
Publisher URL: http://dx.doi.org/10.1088/0953-4075/41/1/015501
Peer reviewed