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Tripartite quantum state sharing

Lance, Andrew; Symul, Thomas; Bowen, Warwick P; Sanderson, Ronald D; Lam, Ping Koy

Description

A multipartite protocol to securely distribute and reconstruct a quantum state was analyzed. A secret quantum state was distributed to three players. It was shown that by collaborating, any two of the three players can reconstruct the state, while individual players obtain nothing. This (2,3) threshold quantum state sharing scheme was characterized in terms of fidelity, signal transfer and reconstruction noise. It was found that fidelity averaged over all reconstruction permutations of...[Show more]

CollectionsANU Research Publications
Date published: 2004
Type: Journal article
URI: http://hdl.handle.net/1885/87338
Source: Physical Review Letters
DOI: 10.1103/PhysRevLett.92.177903

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