# A general inseparability criterion for non-Gaussian states

Source: [A general inseparability criterion for non-Gaussian states](<https://www.sota2.com/research/paper/68fa35f21e209131ce8a5f1b>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-24T21:33:45.545Z

Authors: Prasoon K. Shandilya, Prasanta K. Panigrahi

Published: 2017-07-11T10:08:25.000Z

## Abstract

We have derived a general separability criterion for a class of two mode non-Gaussian continuous variable systems, obtained earlier using PPT, violation of which provides sufficient condition for entanglement. It has been obtained by utilizing the Cauchy-Schwarz inequality and from the basic definition of separable states. This criterion coincides with the work of Agarwal and Biswas \[4\] which involved inequality involving higher order correlation, for testing entanglement in non-Gaussian states.

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/1707.03209>)

[PDF](<https://arxiv.org/pdf/1707.03209.pdf>)