Introduces witness E_NG whose ceiling bounds the Gaussian-irreducible Schmidt number, defining a hierarchy of non-Gaussian entanglement in continuous-variable systems.
Horodecki, Separability criterion and inseparable mixed states with positive partial transposition, Phys
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Non-Gaussian Entanglement Hierarchy Based on the Schmidt Number
Introduces witness E_NG whose ceiling bounds the Gaussian-irreducible Schmidt number, defining a hierarchy of non-Gaussian entanglement in continuous-variable systems.