期刊论文

Zhan Xiao-Gui

英文

理论物理

0253-6102

2009

51

6

1023-1026

10.1088/0253-6102/51/6/12

The project supported by the Natural Science Foundation of Hunan Province under Grant No. 06JJ50118, the Key Project of Chinese Ministry of Education under Grant No. 206103, the National Natural Science Foundation of China under Grant No. 10775048, and the National Fundamental Research Program of China under Grant No. 2007CB925204

本校为第一且通讯机构

We propose a scheme for realizing controlled 1 2 telecloning and 1 1 teleflipping for one-qubit pure states via a quantum network including N agents. The quantum operations used in the information-transmission process are just only one Bell-state measurement, and a series of single-qubit operation. It is shown that the fidelities of the controlled telecloning and teleflipping are independent of the initial states and reach their optimal values of 5/6 and 2/3 respectively on the condition that all the agents collaborate. If any one agent does no...

We propose a scheme for realizing controlled 1→2 telecloning and 1→1 teleflipping for one-qubit purestates via a quantum network including N agents. The quantum operations used in the information-transmission processare just only one Bell-state measurement, and a series of single-qubit operation. It is shown that the fidelities of thecontrolled telecloning and teleflipping are independent of the initial states and reach their optimal values of 5/6 and 2/3respectively on the condition that all the agents collaborate. If any one agent does not...