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arXiv · 1605.07375

Interplay of nonclassicality and entanglement of two-mode Gaussian fields generated in optical parametric processes

Ievgen I. Arkhipov·Jan Peřina Jr.·Jan Peřina·Adam Miranowicz
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Abstract

The behavior of general nonclassical two-mode Gaussian states at a beam splitter is investigated. Single-mode nonclassicality as well as two-mode entanglement of both input and output states are analyzed suggesting their suitable quantifiers. These quantifiers are derived from local and global invariants of linear unitary two-mode transformations such that the sum of input (or output) local nonclassicality measures and entanglement measure gives a global invariant. This invariant quantifies the global nonclassicality resource. Mutual transformations of local nonclassicalities and entanglement induced by the beam splitter are analyzed considering incident noisy twin beams, single-mode noisy squeezed vacuum states, and states encompassing both squeezed states and twin beams. A rich tapestry of interesting nonclassical output states is predicted.

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Ievgen I. Arkhipov, Jan Peřina Jr., Jan Peřina, Adam Miranowicz. 2016-05-24. Interplay of nonclassicality and entanglement of two-mode Gaussian fields generated in optical parametric processes. https://doi.org/10.1103/physreva.94.013807

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