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基于纠缠交换和局域操作的量子秘密共享

DOI: 10.13190/jbupt.200504.74.qinsj, PP. 74-77

Keywords: 量子秘密共享,纠缠交换,量子密码

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Abstract:

为提高量子秘密共享的效率,提出了一种直接共享经典消息的协议.协议充分利用了Bell态纠缠交换和局域操作的性质.为了检测是否存在窃听者,通信粒子被分为检测和消息2部分,对检测部分采用共轭基测量的方法确保传输安全后,再对消息部分作局域操作编码.分析表明该协议是安全的,效率可以达到2个Bell态共享2?bit经典消息.

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