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RSS FeedsEntropy, Vol. 21, Pages 1011: Performance Improvement of Underwater Continuous-Variable Quantum Key Distribution via Photon Subtraction (Entropy)

 
 

18 october 2019 03:04:22

 
Entropy, Vol. 21, Pages 1011: Performance Improvement of Underwater Continuous-Variable Quantum Key Distribution via Photon Subtraction (Entropy)
 


Considering the ocean water’s optical attenuation is significantly larger than that of Fiber Channel, we propose an approach to enhance the security of underwater continuous-variable quantum key distribution (CVQKD). In particular, the photon subtraction operation is performed at the emitter to enhance quantum entanglement, thereby improving the underwater transmission performance of the CVQKD. Simulation results show that the photon subtraction operation can effectively improve the performance of CVQKD in terms of underwater transmission distance. We also compare the performance of the proposed protocol in different water qualities, which shows the advantage of our protocol against water deterioration. Therefore, we provide a suitable scheme for establishing secure communication between submarine and submarine vehicles.


 
217 viewsCategory: Informatics, Physics
 
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Entropy, Vol. 21, Pages 1010: Residual Predictive Information Flow in the Tight Coupling Limit: Analytic Insights from a Minimalistic Model (Entropy)
 
 
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