%0 Journal Article
%T Quantum Secure Direct Communication Protocol Based on W State<br>基于W态的量子安全直接通信协议
%A YANG Xin-yuan
%A MA Zhi
%A LU Xin
%A <br>杨新元
%A 马智
%A 吕欣
%J 计算机科学
%D 2009
%I 
%X A novel two-party quantum secure direct communication protocol was proposed.By using ordered four-particle W state as carrier of information,encoding the secret message with unitary transformation,we can directly transmit secret message with local Bell-basis measurement and classical communication.In ideal channel,the protocol is secure against incoherent attack.The advantage of this scheme is that using W state is more little than GHZ state in energy loss and no quantum bit carrying secret message is trans...
%K Quantum cryptography
%K Quantum secure direct communication
%K W state
%K Unitary transformation<br>量子密码
%K 量子安全直接通信
%K W态
%K 幺正变换
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=64A12D73428C8B8DBFB978D04DFEB3C1&aid=8AED69A12BB34E2EF6C37DB2F6A62B13&yid=DE12191FBD62783C&vid=933658645952ED9F&iid=F3090AE9B60B7ED1&sid=68D88C2FCF9C3098&eid=4F2F18DD6F870C2C&journal_id=1002-137X&journal_name=计算机科学&referenced_num=0&reference_num=0