摘要
提出了基于光子轨道角动量(Orbital Angular Momentum,OAM)的多用户量子身份认证协议。协议首先以光子OAM编码分布式网络节点,网络节点与子服务器之间共享光子OAM纠缠态。可信中心以相位因子分组网络用户,以OAM的纠缠特性实现不同光子OAM的隐形传态。协议利用量子信息保证了认证系统的安全性,以光子OAM实现了网络系统的多用户的同时认证。当OAM态具备两个正交极化方向时,拓扑态的拓扑荷值为l_i(i=1,2,…,4)时,身份认证系统的量子认证效率可提高2×l_i倍。
Multi-user quantum identify authentication scheme,based on the photon orbital angular momentum,is proposed.Authenticated users of the distributed network are encoded with quantum orbital angular momentum and then different nodes share two photon orbital angular momentum entanglement states with sub-servers.Firstly the trusted center of the network groups the quantum users with the phase factor of orbital angular momentum.Secondly authentication parties realize quantum teleportation of the orbital angular momentum by the entanglement of quantum orbital angular momentum.The protocol makes use of quantum information to guarantee the security of authentication system,and realizes multi-user authentication of network system by photon OAM.When the OAM state has two orthogonal polarization directions and the topological charge is equal to li(i=1,2,…,4),the quantum authentication efficiency can be improved 2×li by many times.
作者
董颖娣
彭晓天
宋扬
DONG Ying-di;PENG Xiao-tian;SONG Yang(School of Information and Control Engineering,Xi' an University of Architectural Science and Technology,Xi'an 710055,China)
出处
《量子光学学报》
北大核心
2019年第2期152-157,共6页
Journal of Quantum Optics
基金
陕西省教育厅专向科研基金(2016JK1428)项目
关键词
量子身份认证
轨道角动量
分布式网络
隐形传态
quantum identify authentication
orbital angular momentum
distributed network
quantum teleportation
