量子电子学报2011，Vol.28Issue(3)：335-340,6.DOI:10.3969/j.issn.1007-5461.2011.03.015
基于压缩态的连续变量量子对话协议
Continuous variable quantum dialogue protocol based on squeezed state
摘要
Abstract
In quantum cryptography, it is commonly established that quantum key distribution and quantum secure direct communication work in a single direction, namely one direction communication schemes.However, quantum dialog protocol can enable two legal users exchange messages simultaneously, namely two direction communication. Most existed proposals of quantum dialog protocol are based on discrete variables,which are much more difficult to implement with today's technology, thus they are less practical than its counterpart. Based on squeezed states, a new quantum dialog scheme is proposed, information-theoretical analysis is then followed and it shows that our scheme is not only secure, but also has larger channel capacity than that of its counterpart.关键词
量子信息/量子密码/连续变量/量子对话Key words
quantum information/ quantum cryptography/ continuous variable/ quantum dialogue分类
数理科学引用本文复制引用
张守林,张盛,王剑..基于压缩态的连续变量量子对话协议[J].量子电子学报,2011,28(3):335-340,6.基金项目
国家自然科学基金(60872052)资助课题 （60872052）
