When Non-Gaussian States are Gaussian: Generalization of Non-Separability Criterion for Continuous Variables
arXiv:quant-ph/0611028 · doi:10.1103/PhysRevA.74.050306
Abstract
We present a class of non-Gaussian two-mode continuous variable states for which the separability criterion for Gaussian states can be employed to detect whether they are separable or not. These states reduce to the two-mode Gaussian states as a special case.
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References in corpus (10)
- Extremal entanglement and mixedness in continuous variable systems
- Entanglement conditions for two-mode states
- Inseparability criteria for bipartite quantum states
- Extremality of Gaussian quantum states
- Inseparability inequalities for higher-order moments for bipartite systems
- Determination of continuous variable entanglement by purity measurements
- Entanglement criteria via the uncertainty relations in su(2) and su(1,1) algebra: detection of non-Gaussian entangled states
- Degaussification of twin-beam and nonlocality in the phase space
- Entanglement, purity and energy: Two qubits vs Two modes
- Multipartite continuous-variable entanglement