Entanglement of two-mode Gaussian states: characterization and experimental production and manipulation

By Julien Laurat, G. Keller, J. Oliveira-Huguenin, Claude Fabre, T. Coudreau, Alessio Serafini, Gerardo Adesso, Fabrizio Illuminati. 2005

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A powerful theoretical structure has emerged in recent years on the characterization and quantification of entanglement in continuous-variable systems. After reviewing this framework, we will illustrate it with an original set-up based on a type-II OPO (optical parametric oscillator) with adjustable mode coupling. Experimental results allow a direct verification of many theoretical predictions and provide a sharp insight into the general properties of two-mode Gaussian states and entanglement resource manipulation.

Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics

View Paper: https://www.semanticscholar.org/paper/b82616d10c20461382ccc9d2412ba0d824c4ed64