Efficient multiparty quantum secret sharing with Greenberger-Horne-Zeilinger states
Efficient multiparty quantum secret sharing with Greenberger-Horne-Zeilinger states
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DOI：
10.1088/0256-307x/23/5/006
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发表时间：
2006-05-01
影响因子：
3.5
通讯作者：
Zhou Hong-Yu
中科院分区：
文献类型：
--
作者：
Deng Fu-Guo;Zhou Ping;Zhou Hong-Yu
利用量子密集编码的思想，提出了一种基于Greenberger-Horne-Zeilinger（GHZ）态的高效多方量子秘密共享方案.代理对接收到的用于窃听检查的光子进行单光子测量，并利用四个局部酉运算I、sigma（z）、sigma（x）和i sigma（y）来编码它们的消息。该方案具有高容量的优点，因为每个GHZ状态可以携带两个比特的信息。各方不需要宣布几乎所有光子的测量基础，这将大大减少交换的经典信息。量子比特的本征效率和总效率都接近最大值。
An efficient multiparty quantum secret sharing scheme is proposed with Greenberger-Horne-Zeilinger (GHZ) states following some ideas in quantum dense coding. The agents take the single-photon measurements on the photons received for eavesdropping check and exploit the four local unitary operations I, sigma(z), sigma(x), and i sigma(y) to code their message. This scheme has the advantage of high capacity as each GHZ state can carry two bits of information. The parties do not need to announce the measuring bases for almost all the photons, which will reduce the classical information exchanged largely. The intrinsic efficiency for qubits and the total efficiency both approach the maximal values.