Probabilistically Controlled Teleportation of an Arbitrary Two-Qubit State via Positive Operator-Valued Measure |
| |
Authors: | XU Hai-Feng HAN Lian-Fang |
| |
Affiliation: | 1. School of Mechanical and Electronical Engineering, Suzhou College, Suzhou 234000, China;2. School of Physics and Material Science, Anhui University, Hefei 230039, China;3. Department of Applied Physics, School of Life Science, Anhui Medical University, Hefei 230032, China |
| |
Abstract: | We propose a tripartite scheme for probabilistically teleporting an arbitrary two-qubit state with a fourqubit cluster-class state and a Bell-class state as the quantum channels. In the scheme, the sender and the controller make Bell-state measurements (BSMs) on their respective qubit pairs. With their measurement results, the receiver can reconstruct the original state probabilistically by introducing two auxiliary particles and making appropriate unitary operations and positive operator-valued measure (POVM) instead of usual projective measurement. Moreover, the total success probability and classical communication cost of the present protocol are also worked out. |
| |
Keywords: | controlled teleportation pure entangled quantum channels positive operator-valued measure success probability classical communication cost |
本文献已被 CNKI 等数据库收录! |
| 点击此处可从《理论物理通讯》浏览原始摘要信息 |
|
点击此处可从《理论物理通讯》下载全文 |
|