dorsal/arxiv
View SchemaTripartite Quantum State Sharing
| Authors | Andrew M. Lance, Thomas Symul, Warwick P. Bowen, Barry C. Sanders, Ping Koy Lam |
|---|---|
| Categories | |
| ArXiv ID | quant-ph/0311015 |
| URL | https://arxiv.org/abs/quant-ph/0311015 |
| DOI | 10.1103/PhysRevLett.92.177903 |
| Journal | Phys. Rev. Lett. 92, 177903 (2004) |
Abstract
We demonstrate a multipartite protocol to securely distribute and reconstruct a quantum state. A secret quantum state is encoded into a tripartite entangled state and distributed to three players. Any two of the three players are able to reconstruct the state, whilst individual players obtain nothing. We characterize this (2,3) threshold quantum state sharing scheme in terms of fidelity, signal transfer and reconstruction noise. We demonstrate a fidelity averaged over all reconstruction permutations of 0.73, which is achievable only using quantum resources.
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"abstract": "We demonstrate a multipartite protocol to securely distribute and reconstruct\na quantum state. A secret quantum state is encoded into a tripartite entangled\nstate and distributed to three players. Any two of the three players are able\nto reconstruct the state, whilst individual players obtain nothing. We\ncharacterize this (2,3) threshold quantum state sharing scheme in terms of\nfidelity, signal transfer and reconstruction noise. We demonstrate a fidelity\naveraged over all reconstruction permutations of 0.73, which is achievable only\nusing quantum resources.",
"arxiv_id": "quant-ph/0311015",
"authors": [
"Andrew M. Lance",
"Thomas Symul",
"Warwick P. Bowen",
"Barry C. Sanders",
"Ping Koy Lam"
],
"categories": [
"quant-ph"
],
"doi": "10.1103/PhysRevLett.92.177903",
"journal_ref": "Phys. Rev. Lett. 92, 177903 (2004)",
"title": "Tripartite Quantum State Sharing",
"url": "https://arxiv.org/abs/quant-ph/0311015"
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