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arXiv · 1301.7475

Non-Gaussian continuous-variable entanglement and steering

M. K. Olsen·J. F. Corney
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Abstract

Two Kerr-squeezed optical beams can be combined in a beamsplitter to produce non-Gaussian continuous-variable entangled states. We characterize the non-Gaussian nature of the output by calculating the third-order cumulant of quadrature variables, and predict the level of entanglement that could be generated by evaluating the Duan-Simon and Reid Einstein-Podolsky-Rosen criteria. These states have the advantage over Gaussian states and non-Gaussian measurement schemes in that the well known, efficient and proven technology of homodyne detection may be used for their characterisation. A physical demonstration maintaining the important features of the model could be realised using two optical fibres, beamsplitters, and homodyne detection.

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M. K. Olsen, J. F. Corney. 2013-01-30. Non-Gaussian continuous-variable entanglement and steering. https://doi.org/10.1103/physreva.87.033839

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