A quantum key distribution scheme based on quantum error-avoiding code in decoherence-free subspace

摘要：

　　Countering channel noise is an urgent problem to achieve safe and efficient quantum communication.In order to solve this problem,a quantum key distribution(QKD)scheme based on quantum error-avoiding code(QEAC)in decoherence-free subspace(DFS)is proposed.Firstly,we use group theory to design a simple method for constructing QEAC based on the DFS,which is a better solution to overcome quantum channel noise.Secondly,the constructed QEAC is applied in the construction of the QKD scheme for error avoidance.The idea of QEAC for quantum key distribution can effectively overcome the noise in the channel without complicated sys-tems.The proposed method of constructing a QKD scheme for quantum secure communication skillfully utilizes DFS for analysis and research,and improves the quantum bit efficiency and security of quantum key distribution.

关键词： quantum error-avoiding code decoherence-free subspace quan-tum key distribution

作者: Qianqian Hu Tianzi Sun Bao Feng Wei Jia

作者单位: State Grid Electric Power Research Institute,NARI Group Corporation NRGD Quantum CTek.,LTD.Nanjing,C State Grid Mengdong Electric Power Company,Information and Communication Corporation Mengdong,China

会议类型: 国际会议

会议名称: 2019国图灵大会(ACM Turing Celebration conference-China 2019 )

会议地点: 成都

会议语种:英文

页码: 957-963

在线出版日期: 2019-05-17（万方平台首次上网日期，不代表论文的发表时间）