Optimal conclusive teleportation of a d-dimensional two-particle unknown quantum state
Yang Yu-Guang (杨宇光)a, Wen Qiao-Yan (温巧燕)a, Zhu Fu-Chen (朱辅臣)b
a Science School, Beijing University of Posts and Telecommunications, Beijing 100876, China; b National Defense Science and Technology Secrecy Communications Key Lab, Southwest Communications Institute, Chengdu 610041, China
Abstract A conclusive teleportation protocol of a d-dimensional two-particle unknown quantum state using three d-dimensional particles in an arbitrary pure state is proposed. A sender teleports the unknown state conclusively to a receiver by using the positive operator valued measure(POVM) and introducing an ancillary qudit to perform the generalized Bell basis measurement. We calculate the optimal teleportation fidelity. We also discuss and analyse the reason why the information on the teleported state is lost in the course of the protocol.
Received: 29 September 2005
Revised: 05 December 2005
Accepted manuscript online:
PACS:
03.65.Ud
(Entanglement and quantum nonlocality)
Fund: Project supported by the National Natural Science Foundation of China (Grant No 60373059), the Major Research Plan of the National Natural Science Foundation of China (Grant No 90604023) and the Doctoral Foundation of the State Education Ministry of China
Cite this article:
Yang Yu-Guang (杨宇光), Wen Qiao-Yan (温巧燕), Zhu Fu-Chen (朱辅臣) Optimal conclusive teleportation of a d-dimensional two-particle unknown quantum state 2006 Chinese Physics 15 907
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.
