量子密码分配过程中的测量基问题

量子电子学报 , 2005, 22(5): 704-708. doi: 10.3969/j.issn.1007-5461.2005.05.007

量子密码分配过程中的测量基问题

李义峰 ^1, , 陈建国 ^2, , 冯国英 ^3, , 李大义 ^4,

1.四川大学电子信息学院,四川,成都,610064

2.四川大学电子信息学院,四川,成都,610064

3.四川大学电子信息学院,四川,成都,610064

4.四川大学电子信息学院,四川,成都,610064

关键词：量子信息 , 量子密码 , 密钥分配 , 测量基 , 误码率

Analysis of basis direction deviation in quantum communication

推导了利用单量子通信系统中Alice发送基与Bob接收基方向间有偏差时双方建立的Sifted-key的误码率公式.在对公式进行考查的基础上,我们建议设立一个万有方向来统一通信双方使用的基的方向.

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