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Paper detail

Multiparty hierarchical quantum-information splitting

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.

preprint2011arXivOpen access
Xin-Wen WangDeng-Yu ZhangShi-Qing TangLi-Jun Xie
quant-ph
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Xin-Wen WangDeng-Yu ZhangShi-Qing TangLi-Jun Xie

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