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arXiv · 1005.0034

Efficient and economic five-party quantum state sharing of an arbitrary m-qubit state

Yu-Bo Sheng·Fu-Guo Deng·Hong-Yu Zhou
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Abstract

We present an efficient and economic scheme for five-party quantum state sharing of an arbitrary m-qubit state with $2m$ three-particle Greenberger-Horne-Zeilinger (GHZ) states and three-particle GHZ-state measurements. It is more convenient than other schemes as it only resorts to three-particle GHZ states and three-particle joint measurement, not five-particle entanglements and five-particle joint measurements. Moreover, this symmetric scheme is in principle secure even though the number of the dishonest agents is more than one. Its total efficiency approaches the maximal value.

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Yu-Bo Sheng, Fu-Guo Deng, Hong-Yu Zhou. 2010-05-01. Efficient and economic five-party quantum state sharing of an arbitrary m-qubit state. https://doi.org/10.1140/epjd%2Fe2008-00075-5

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