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Unity gain and nonunity gain quantum teleportation

Bowen, Warwick P; Treps, N.; Buchler, Benjamin; Schnabel, R; Ralph, Timothy Cameron; Symul, Thomas; Lam, Ping Koy

Description

We investigate continuous variable quantum teleportation. We discuss the methods presently used to characterize teleportation in this regime, and propose an extension of the measures proposed by Grangier and Grosshans, and Ralph and Lam. This new measure, the gain normalized conditional variance product M, turns out to be highly significant for continuous variable entanglement swapping procedures, which we examine using a necessary and sufficient criterion for entanglement. We elaborate on our...[Show more]

CollectionsANU Research Publications
Date published: 2003
Type: Journal article
URI: http://hdl.handle.net/1885/76396
Source: IEEE Journal on Selected Topics in Quantum Electronics
DOI: 10.1109/JSTQE.2003.820908

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