提出了利用五个粒子纠缠GHZ态作为量子信道来完成三个粒子纠缠态的隐形传态,从而实现三个量子位的秘密共享方案,并对方案进行安全性分析,该方案充分利用GHZ态五个粒子间的相关性,通过一次Bell基测量和三次单粒子测量,并通过相应的幺正变换即可实现Alice和Charlie之间三个量子位的秘密共享.与相关文献相比,在没有增加粒子数的前提下,提高了量子位的传输,为量子密钥共享传递更多量子位提供了理论基础.
With a five-particle entanglement GHZ state as the quantum channel, a quantum secret sharing scheme is proposed, which put through the three-particle teleportation in order to realize the three-quantum secret sharing. The safety of the scheme is anajyzed. The scheme makes full use of five particles' relation-ship of the GHZ-state. It is found that a Bell-basis measurement, three single particle measurement and corresponding unitary transformation are required. Compared with the pertinent literature, it enhances the quantum transmission without increasing the number of particles, and forms a theoretical basis for transmitting more quanta in quantum secret sharing.
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