Quantum Secret Sharing Schemes and Reversibility of Quantum Operations

Details Quantum Secret Sharing Schemes and Reversibility of Quantum Operations Quantum Secret Sharing Schemes and Reversibility of Quantum Operations

2005-04-30

arxiv.org/abs/quant-ph/0505001v1

Physics

Quantum Physics

8 pages

Scientific paper

10.1103/PhysRevA.72.032318

Quantum secret sharing schemes encrypting a quantum state into a multipartite entangled state are treated. The lower bound on the dimension of each share given by Gottesman [Phys. Rev. A \textbf{61}, 042311 (2000)] is revisited based on a relation between the reversibility of quantum operations and the Holevo information. We also propose a threshold ramp quantum secret sharing scheme and evaluate its coding efficiency.

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