Physics – Quantum Physics
Scientific paper
2004-11-27
Published, Phys. Rev. A 71, 033814 (2005)
Physics
Quantum Physics
Published, Phys. Rev. A 71, 033814 (2005) (7 figures, 11 pages)
Scientific paper
10.1103/PhysRevA.71.033814
Quantum state sharing is a protocol where perfect reconstruction of quantum states is achieved with incomplete or partial information in a multi-partite quantum networks. Quantum state sharing allows for secure communication in a quantum network where partial information is lost or acquired by malicious parties. This protocol utilizes entanglement for the secret state distribution, and a class of "quantum disentangling" protocols for the state reconstruction. We demonstrate a quantum state sharing protocol in which a tripartite entangled state is used to encode and distribute a secret state to three players. Any two of these players can collaborate to reconstruct the secret state, whilst individual players obtain no information. We investigate a number of quantum disentangling processes and experimentally demonstrate quantum state reconstruction using two of these protocols. We experimentally measure a fidelity, averaged over all reconstruction permutations, of F = 0.73. A result achievable only by using quantum resources.
Bowen Warwick P.
Lam Ping Koy
Lance Andrew M.
Ralph Timothy C.
Sanders Barry C.
No associations
LandOfFree
Continuous Variable Quantum State Sharing via Quantum Disentanglement does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Continuous Variable Quantum State Sharing via Quantum Disentanglement, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Continuous Variable Quantum State Sharing via Quantum Disentanglement will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-692117