摘要
We present a scheme for remotely preparing a state via the controls of many agents in a network.In thescheme,the agents' controls are achieved by utilizing quantum key distribution.Generally,the original state can berestored by the receiver with probability 1/2 if all the agents collaborate.However,for certain type of original states therestoration probability is unit.
We present a scheme for remotely preparing a state via the controls of many agents in a network. In the scheme, the agents＇ controls are achieved by utilizing quantum key distribution. Generally, the original state can be restored by the receiver with probability 1/2 if all the agents collaborate. However, for certain type of original states the restoration probability is unit.
基金
Supported by the program for New Century Excellent Talents at the University of China under Grant No.NCET-06-0554
the National Natural Science Foundation of China under Grant Nos.60677001,50672001,10874122,and 10747146
the Science-Technology Fund of Anhui Province for Outstanding Youth under Grant No.06042087
the Key Fund of the Ministry of Education of China under Grant No.206063
the Natural Science Foundation of Guangdong Province under Grant Nos.06300345 and 7007806
关键词
远程控制
制备
量子密钥分配
状态恢复
接收概率
远程网络
代理商
代理人
controlled remote state preparation, quantum key distribution, single-qubit von Neumann orthogonal measurement, controlled-NOT gate
