%0 Journal Article
%T Quantum Bidirectional Secure Direct Communication via Entanglement Swapping
%A CHEN Yan
%A MAN Zhong-Xiao
%A XIA Yun-Jie
%A <br>陈艳
%A 满忠晓
%A 夏云杰
%J 中国物理快报
%D 2007
%I 
%X In light of a quantum secure direct communication （QSDC） scheme using entanglement swapping Chin. Phys. Lett. 22 （2005）18], by introducing additional local operations for encoding, we propose a bidirectional QSDC （BQSDC） protocol, in which two legitimate users can simultaneously exchange their respective messages. The rule for the users to retrieve his/her partner＇s messages is derived explicitly in the most general case. Eve＇s commonly used attack method has been discussed and can be detected with the security checking process.
%K 03
%K 67
%K Hk
%K 03
%K 65
%K Ud<br>双向保护
%K 缠结
%K 交换对象
%K 物理学
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=E27DA92E19FE279A273627875A70D74D&aid=A6F1F92187EC7BB8BC9C48E6484DA54F&yid=A732AF04DDA03BB3&vid=B91E8C6D6FE990DB&iid=CA4FD0336C81A37A&sid=2A8D03AD8076A2E3&eid=BC12EA701C895178&journal_id=0256-307X&journal_name=中国物理快报&referenced_num=0&reference_num=0