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Continuous variable (2, 3) threshold quantum secret sharing schemes

Lance, Andrew; Symul, Thomas; Bowen, Warwick P; Tyc, Tomas; Sanders, Barry Cyril; Lam, Ping Koy

Description

We present two schemes to perform continuous variable (2, 3) threshold quantum secret sharing (QSS) on the quadrature amplitudes of bright light beams. Both schemes require a pair of entangled light beams. The first scheme utilizes two phase sensitive optical amplifiers, whilst the second uses an electro-optic feedforward loop for the reconstruction of the secret. We examine the efficacy of QSS in terms of fidelity, as well as the signal transfer coefficients and the conditional variances...[Show more]

CollectionsANU Research Publications
Date published: 2003-01-17
Type: Journal article
URI: http://hdl.handle.net/10440/211
http://digitalcollections.anu.edu.au/handle/10440/211
Source: New Journal of Physics

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