Multiparty Quantum Secret Report
Multiparty Quantum Secret Report
复制标题
DOI：
10.1088/0256-307x/23/7/006
复制
发表时间：
2006-06
影响因子：
3.5
通讯作者：
Fuguo Deng;Xihan Li;Chun-Yan Li;Ping Zhou;Yu-Jie Liang;Hong-Yu Zhou
中科院分区：
文献类型：
--
作者：
Fuguo Deng;Xihan Li;Chun-Yan Li;Ping Zhou;Yu-Jie Liang;Hong-Yu Zhou
提出了一种结合量子加密的多方量子秘密报告方案。老板 Alice 和她的 M 个代理首先共享一系列 (M+1) 粒子 Greenberger-Horne-Zeilinger (GHZ) 状态，只有 Alice 知道每个 (M+1)-粒子量子系统处于哪个状态。每个代理利用受控非 (CNot) 门，通过使用 GHZ 状态中的粒子作为控制量子位来加密行进粒子。老板爱丽丝在对她的粒子在 GHZ 状态或非 GHZ 状态执行 σx 操作后，用 CNot 门解密行进粒子。 GHZ 态（量子密钥）用完后，各方通过从共享的 GHZ 态中挑选一些样本并用两个测量基进行测量来检查是否存在恶意窃听者（Eve）监控量子线。在确认量子密钥的安全性后，他们重复使用剩余的GHZ状态进行下一轮量子通信。该方案具有量子位固有效率和总效率高的优点。
A multiparty quantum secret report scheme is proposed with quantum encryption. The boss Alice and her M agents first share a sequence of (M+1)-particle Greenberger–Horne–Zeilinger (GHZ) states that only Alice knows which state each (M+1)-particle quantum system is in. Each agent exploits a controlled-not (CNot) gate to encrypt the travelling particle by using the particle in the GHZ state as the control qubit. The boss Alice decrypts the travelling particle with a CNot gate after performing a σx operation on her particle in the GHZ state or not. After the GHZ states (the quantum key) are used up, the parties check whether there is a vicious eavesdropper, say Eve, monitoring the quantum line, by picking out some samples from the GHZ states shared and measuring them with two measuring bases. After confirming the security of the quantum key, they use the remaining GHZ states repeatedly for the next round of quantum communication. This scheme has the advantage of high intrinsic efficiency for the qubits and total efficiency.