scholarly journals Loss-tolerant concatenated Bell-state measurement with encoded coherent-state qubits for long-range quantum communication

2021 ◽  
Vol 3 (4) ◽  
Author(s):  
Seok-Hyung Lee ◽  
Seung-Woo Lee ◽  
Hyunseok Jeong
Keyword(s):  
Coherent State ◽  
Long Range ◽  
Quantum Communication ◽  
Bell State ◽  
Bell State Measurement ◽  
State Measurement

QUANTUM AUTHENTICATION USING ENTANGLED STATES

2004 ◽  
Vol 15 (04) ◽  
pp. 609-617 ◽  
Author(s):  
XIAOYU LI ◽  
HOWARD BARNUM
Keyword(s):  
Bell State ◽  
Authentication Scheme ◽  
Entangled States ◽  
Bell State Measurement ◽  
Epr Pairs ◽  
State Measurement ◽  
Quantum Authentication ◽  
Einstein Podolsky Rosen

A quantum authentication scheme is presented in this paper. Two parties share Einstein-Podolsky-Rosen(EPR) pairs previously as the identification token. They create auxiliary EPR pairs to interact with the identification token. Then the authentication is accomplished by a complete Bell state measurement. This scheme is proved to be secure. If no errors and eavesdroppers exist in the transmission, the identification token is unchanged after the authentication. So it can be reused.

Single-photon Bell state measurement based on a quantum random walk

2019 ◽  
Vol 100 (4) ◽  
Author(s):  
Xiao-Xiao Chen ◽  
Jia-Zhi Yang ◽  
Xu-Dan Chai ◽  
An-Ning Zhang
Keyword(s):  
Random Walk ◽  
Single Photon ◽  
Bell State ◽  
Quantum Random Walk ◽  
Bell State Measurement ◽  
State Measurement
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