%0 Journal Article
%T Analysis of differential-phase-shift keying protocol for a two-way quantum-key-distribution system<br>基于差分相移键控协议的双向量子密钥分配系统研究
%A Jiao Rong-Zhen
%A Feng Chen-Xu
%A <br>焦荣珍
%A 冯晨旭
%J 物理学报
%D 2008
%I 
%X The performance of a two-way quantum-key-distribution (QKD) system are analyzed using the differential-phase-shift keying (DPSK) protocol. The comparison is based on the secure communication rate as a function of distance for three QKD protocols: the Bennett-Brassard 1984, the Bennett-Brassard-Mermin 1992, and the coherent differential-phase-shift keying protocols. We discussed the security of DPSK protocol against any type of individual photon splitting attack and concluded that the simple and efficient DPSK protocol allows for more than 200km of secure communication distance with high communication rates.
%K differential-phase-shift keying protocol
%K quantum efficiency
%K communication rate<br>差分相移键控协议，
%K 量子效率，
%K 通信速率
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=29DF2CB55EF687E7EFA80DFD4B978260&aid=503B00EAE5A13B179242ECBC1B8C1263&yid=67289AFF6305E306&vid=11B4E5CC8CDD3201&iid=0B39A22176CE99FB&sid=AF14A8B15FB15A64&eid=2A22E972FD97071B&journal_id=1000-3290&journal_name=物理学报&referenced_num=0&reference_num=6