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Gaussian measures of entanglement versus negativities: the ordering of two-mode Gaussian states
Gerardo Adesso, Fabrizio Illuminati
In this work we focus on entanglement of two--mode Gaussian states of continuous variable systems. We first review the formalism of Gaussian measures of entanglement, adopting the…
Entanglement, Purity, and Information Entropies in Continuous Variable Systems
Gerardo Adesso, Alessio Serafini, Fabrizio Illuminati
Quantum entanglement of pure states of a bipartite system is defined as the amount of local or marginal ({\em i.e.}referring to the subsystems) entropy. For mixed states this ident…
Entanglement sharing: from qubits to Gaussian states
Gerardo Adesso, Fabrizio Illuminati
It is a central trait of quantum information theory that there exist limitations to the free sharing of quantum correlations among multiple parties. Such 'monogamy constraints' hav…