Two Way Quantum Direct Communication Protocol Using Entanglement Swapping

2010 ◽  
Vol 56 (6) ◽  
pp. 1733-1737 ◽  
Author(s):  
Hyung Jin Yang ◽  
Chang Ho Hong ◽  
Jong In Lim ◽  
Ji In Kim
Keyword(s):  
Communication Protocol ◽  
Entanglement Swapping ◽  
Direct Communication ◽  
Quantum Direct Communication

Three-Party Simultaneous Quantum Secure Communication with Unidirectional Qubit Transmission

2015 ◽  
Vol 740 ◽  
pp. 857-860
Author(s):  
Xun Ru Yin
Keyword(s):  
Secure Communication ◽  
Closed Loop ◽  
Communication Protocol ◽  
Quantum Secure Direct Communication ◽  
The Other ◽  
Quantum Channels ◽  
Direct Communication ◽  
Secret Information ◽  
Quantum Secure Communication ◽  
Encoded Particles

A three-party quantum secure direct communication protocol is proposed, in which the qubit transmission forms a closed loop. In this scheme, each party implements the corresponding unitary operations according to his secret bit value over the quantum channels. Then, by performing Bell measurements on the encoded particles, each party can extract the other two parties’ secret information simultaneously. Thus the three parties realize the direct exchange successfully.

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