| Original Articles |
|
|
|
|
Quantum Bidirectional Secure Direct Communication via Entanglement Swapping |
| CHEN Yan;MAN Zhong-Xiao;XIA Yun-Jie |
| College of Physics and Engineering, Qufu Normal University, Qufu 273165 |
|
| Cite this article: |
|
CHEN Yan, MAN Zhong-Xiao, XIA Yun-Jie 2007 Chin. Phys. Lett. 24 19-22 |
|
|
|
Abstract In light of a quantum secure direct communication (QSDC) scheme using entanglement swapping [Chin. Phys. Lett. 22(2005)18], by introducing additional local operations for encoding, we propose a bidirectional QSDC (BQSDC) protocol, in which two legitimate users can simultaneously exchange their respective messages. The rule for the users to retrieve his/her partner’s messages is derived explicitly in the most general case. Eve’s commonly used attack method has been discussed and can be detected with the security checking process.
|
| Keywords:
03.67.Hk
03.65.Ud
|
|
|
Published: 01 January 2007
|
|
| PACS: |
03.67.Hk
|
(Quantum communication)
|
| |
03.65.Ud
|
(Entanglement and quantum nonlocality)
|
|
|
|
|
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
