A quantum secure direct communication scheme using dense coding is proposed.At first,the sender (Alice)prepares four-particle genuine entangled states and shares them with the receiver (Bob) by sending two particles i...A quantum secure direct communication scheme using dense coding is proposed.At first,the sender (Alice)prepares four-particle genuine entangled states and shares them with the receiver (Bob) by sending two particles in eachentangled state to him.Secondly,Alice encodes secret information by performing the unitary transformations on herparticles and transmits them to Bob.Finally,Bob performs the joint measurements on his particles to decode the secretinformation.The two-step security test guarantees the security of communication.展开更多
在世界新闻通讯社发展史上,曾经与英国路透社齐名的法国哈瓦斯社和德国沃尔夫社都已成为历史了。而只有路透社仍以它的创建者的名字,在当今国际传播领域中照常地运行着,并发展成为除了王冠和国旗之外的英国威望的象征。这一切与它的创...在世界新闻通讯社发展史上,曾经与英国路透社齐名的法国哈瓦斯社和德国沃尔夫社都已成为历史了。而只有路透社仍以它的创建者的名字,在当今国际传播领域中照常地运行着,并发展成为除了王冠和国旗之外的英国威望的象征。这一切与它的创办者的艰辛努力是分不开的。保罗·朱利叶斯·路透(Paul Julius Reuter1816—1899)出生在德国一个犹太人家庭,1851年在伦敦创办路透社。路透为其通讯社事业的发展倾注了全部的心血,他在经营管理方面有许多成功的、独到之处,本文试从以下四个方面分析。展开更多
基金Supported by the National Natural Science Foundation of China under Grant No.10704011the Research Programs of the Educational Office of Liaoning Province under Grant No.2008006
文摘A quantum secure direct communication scheme using dense coding is proposed.At first,the sender (Alice)prepares four-particle genuine entangled states and shares them with the receiver (Bob) by sending two particles in eachentangled state to him.Secondly,Alice encodes secret information by performing the unitary transformations on herparticles and transmits them to Bob.Finally,Bob performs the joint measurements on his particles to decode the secretinformation.The two-step security test guarantees the security of communication.
文摘在世界新闻通讯社发展史上,曾经与英国路透社齐名的法国哈瓦斯社和德国沃尔夫社都已成为历史了。而只有路透社仍以它的创建者的名字,在当今国际传播领域中照常地运行着,并发展成为除了王冠和国旗之外的英国威望的象征。这一切与它的创办者的艰辛努力是分不开的。保罗·朱利叶斯·路透(Paul Julius Reuter1816—1899)出生在德国一个犹太人家庭,1851年在伦敦创办路透社。路透为其通讯社事业的发展倾注了全部的心血,他在经营管理方面有许多成功的、独到之处,本文试从以下四个方面分析。