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arXiv · 1605.02939

Retrieving the Covariance Matrix of an Unknown Two-Mode Gaussian State by Means of a Reference Twin Beam

Ievgen I. Arkhipov·Jan Peřina Jr
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Abstract

A method for revealing the covariance matrix of an unknown two-mode Gaussian state is given based on the interference with a reference twin beam whose covariance matrix is known. In the method, first- and second-order cross-correlation intensity moments are determined varying the overall phase of the reference twin beam.

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Ievgen I. Arkhipov, Jan Peřina Jr. 2016-05-10. Retrieving the Covariance Matrix of an Unknown Two-Mode Gaussian State by Means of a Reference Twin Beam. https://doi.org/10.1016/j.optcom.2016.04.070

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