Disentanglement in bipartite continuous-variable systems

Entanglement in bipartite continuous-variable systems is investigated in the presence of partial losses such as those introduced by a realistic quantum communication channel, e.g., by propagation in an optical fiber. We find that entanglement can vanish completely for partial losses, in a situation...

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Veröffentlicht in:	Physical review. A, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2011-11, Vol.84 (5), Article 052330
Hauptverfasser:	Barbosa, F. A. S., de Faria, A. J., Coelho, A. S., Cassemiro, K. N., Villar, A. S., Nussenzveig, P., Martinelli, M.
Format:	Artikel
Sprache:	eng
Schlagworte:	ATOMIC AND MOLECULAR PHYSICS CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS DATA TRANSMISSION LOSSES OPTICAL FIBERS POTENTIALS QUANTUM ENTANGLEMENT QUANTUM MECHANICS QUANTUM STATES VISIBLE RADIATION
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