A Modified Scheme of Quantum Secure Direct Communication Based on 4-Dimension Hilbert Space by Mixing Bell State Particles and Single Photons

2019 ◽  
Vol 09 (02) ◽  
pp. 188-204
Author(s):  
欣龙 王
2016 ◽  
Vol 65 (23) ◽  
pp. 230301
Author(s):  
Cao Zheng-Wen ◽  
Zhao Guang ◽  
Zhang Shuang-Hao ◽  
Feng Xiao-Yi ◽  
Peng Jin-Ye

2009 ◽  
Vol 23 (27) ◽  
pp. 3225-3234 ◽  
Author(s):  
CHUAN-JIA SHAN ◽  
JI-BING LIU ◽  
WEI-WEN CHENG ◽  
TANG-KUN LIU ◽  
YAN-XIA HUANG ◽  
...  

A theoretical scheme of bidirectional quantum secure direct communication is proposed in the context of driven cavity QED. We first present an entanglement swapping scheme in cavities where two atoms without previous interaction can be entangled with a success probability of unity. Then, based on a novel property of entanglement swapping, we propose a bidirectional quantum secure direct communication protocol, in which two legitimate users can exchange their different secret messages simultaneously in a direct way. The probability of success in our scheme is 1.0. This scheme does not involve apparent (or direct) Bell-state measurements and is insensitive to the cavity decay and the thermal field.


2008 ◽  
Vol 86 (9) ◽  
pp. 1097-1101 ◽  
Author(s):  
H Ma ◽  
B Chen ◽  
Z Guo ◽  
H Li

In this paper, we develop a quantum network with a mutual quantum secure direct communication scheme based on multiparty quantum secret sharing. This quantum network, assumed to contain clusters S, M, and D, shares a sequence of single photons and Greenberger–Horne–Zeilinger (GHZ) states. Each cluster is made of the same or similar quantum nodes gathered or occurring closely together. The feature of this scheme is that the communication between two clusters depends on the agreement of the third cluster. We also prove that such a quantum network is unconditionally secure.PACS Nos.: 03.67.–Dd, 03.67.–Hk, 89.70.–a


2007 ◽  
Vol 16 (12) ◽  
pp. 3553-3559 ◽  
Author(s):  
Deng Fu-Guo ◽  
Li Xi-Han ◽  
Li Chun-Yan ◽  
Zhou Ping ◽  
Zhou Hong-Yu

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