Multiparty hierarchical quantum-information splitting

Details Multiparty hierarchical quantum-information splitting Multiparty hierarchical quantum-information splitting

2011-01-19

arxiv.org/abs/1101.3700v1

J. Phys. B: At. Mol. Opt. Phys. 44 (2011) 035505

Physics

Quantum Physics

6 pages, 2 tables

Scientific paper

We propose a scheme for multiparty hierarchical quantum-information splitting (QIS) with a multipartite entangled state, where a boss distributes a secret quantum state to two grades of agents asymmetrically. The agents who belong to different grades have different authorities for recovering boss's secret. Except for boss's Bell-state measurement, no nonlocal operation is involved. The presented scheme is also shown to be secure against eavesdropping. Such a hierarchical QIS is expected to find useful applications in the field of modern multipartite quantum cryptography.

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