Multiparty hierarchical quantum-information splitting

XW Wang, DY Zhang, SQ Tang… - Journal of Physics B …, 2011 - iopscience.iop.org
XW Wang, DY Zhang, SQ Tang, LJ Xie
Journal of Physics B: Atomic, Molecular and Optical Physics, 2011iopscience.iop.org
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 the boss's secret. Except for the 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 …
Abstract
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 the boss's secret. Except for the 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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