On the covariance matrix for Gaussian states

• URL: http://arxiv.org/abs/2003.11063v2
• Date: Sat, 28 Mar 2020 22:48:27 GMT
• Title: On the covariance matrix for Gaussian states
• Authors: Angel Garcia-Chung
• Abstract summary: We discuss how the criteria to characterize squeezing and entanglement using the covariance matrix give rise to new criteria in the symplectic matrix elements used to construct the general Gaussian states.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We show the explicit expression for the covariance matrix of general Gaussian states in terms of the symplectic group matrices. We discuss how the criteria to characterize squeezing and entanglement using the covariance matrix give rise to new criteria in the symplectic matrix elements used to construct the general Gaussian states.

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