Information-theoretic aspects of quantum inseparability of mixed states
Ryszard Horodecki, Michal Horodecki
Abstract
Information-theoretic aspects of quantum inseparability of mixed states are investigated in terms of the α-entropy inequalities and teleportation fidelity. Inseparability of mixed states is defined and a complete characterization of the inseparable 2×2 systems with maximally disordered subsystems is presented within the Hilbert-Schmidt space formalism. A connection between teleportation and negative conditional α-entropy is also emphasized.
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