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Quantum state sharing

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


We demonstrate a multipartite protocol that utilizes entanglement to securely distribute and reconstruct a quantum state. A secret quantum state is encoded into a tripartite entangled state and distributed to three players. By collaborating together, a majority of the players can reconstruct the state, whilst the remaining player obtains nothing. This (2, 3) threshold quantum state sharing scheme is characterized in terms of fidelity (F), signal transfer (T) and reconstruction noise (V). We...[Show more]

CollectionsANU Research Publications
Date published: 2004
Type: Conference paper
Source: Proceedings of the SPIE: Fluctuations and Noise in Phontonics and Quantum Optics II
DOI: 10.1117/12.546945


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