Teleported State and its Fidelity in Quantum Teleportation of Continuous Variables
LI Fu-Li1, LI Hong-Rong1, ZHANG Jun-Xiang2, ZHU Shi-Yao3
1Department of Applied Physics, Xian Jiaotong University, Xi’an 710049
2Institute of Opto-Electronics, Shanxi University, Taiyuan 030006
3Department of Physics, Hong Kong Baptist University, Hong Kong
Teleported State and its Fidelity in Quantum Teleportation of Continuous Variables
LI Fu-Li1;LI Hong-Rong1;ZHANG Jun-Xiang2;ZHU Shi-Yao3
1Department of Applied Physics, Xian Jiaotong University, Xi’an 710049
2Institute of Opto-Electronics, Shanxi University, Taiyuan 030006
3Department of Physics, Hong Kong Baptist University, Hong Kong
Abstract： When given an unknown quantum state which may be either a pure or mixed state in the coherent state representation, we show that explicit expressions for the teleported state and its fidelity in the teleportation process (S.L. Braunstein and H. J. Kimble, Phys. Rev. Lett. 80(1998)869) can be obtained without explict expansions for the two-mode squeezed vacuum state and the Bell basis in a specified representation.
LI Fu-Li;LI Hong-Rong;ZHANG Jun-Xiang;ZHU Shi-Yao. Teleported State and its Fidelity in Quantum Teleportation of Continuous Variables[J]. 中国物理快报, 2003, 20(1): 14-17.
LI Fu-Li, LI Hong-Rong, ZHANG Jun-Xiang, ZHU Shi-Yao. Teleported State and its Fidelity in Quantum Teleportation of Continuous Variables. Chin. Phys. Lett., 2003, 20(1): 14-17.
2003, Vol. 20 
