A Method for Transferring an Unknown Quantum State and Its Application |
| |
| Authors: | YAN Feng-Li HUO Hai-Rui |
| |
| Affiliation: | 1. College of Physics and Information Engineering, HebeiNormal University, Shijiazhuang 050016, China;2. CCAST (World Laboratory), P.O. Box 8730, Beijing 100080, China |
| |
| Abstract: | ![]()
We suggest a method for transferring an unknown quantum state. In this method the sender Alice first applies a controlled-not operation on the particle in the unknown quantum state and an ancillary particle which she wants to send to the receiver Bob. Then she sends the ancillary particle to Bob. When Alice is informed by Bob that the ancillary particle is received, she performs a local measurement on her particle and sends Bob the outcome of the local measurement via a classical channel. Depending on the outcome Bob can restore the unknown quantum state,which Alice destroyed, on the ancillary particle successfully. As anapplication of this method we propose a quantum secure direct communication protocol. By introducing the decoy qubits the security of the scheme is guaranteed. |
| |
| Keywords: | transferring unknown quantum state secure directcommunication controlled-not operation |
| 本文献已被 万方数据 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 |
|
