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RSS FeedsEntropy, Vol. 21, Pages 598: Enhanced Superdense Coding Over Correlated Amplitude Damping Channel (Entropy)


16 june 2019 14:03:28

Entropy, Vol. 21, Pages 598: Enhanced Superdense Coding Over Correlated Amplitude Damping Channel (Entropy)

Quantum channels with correlated effects are realistic scenarios for the study of noisy quantum communication when the channels are consecutively used. In this paper, superdense coding is reexamined under a correlated amplitude damping (CAD) channel. Two techniques named as weak measurement and environment-assisted measurement are utilized to enhance the capacity of superdense coding. The results show that both of them enable us to battle against the CAD decoherence and improve the capacity with a certain probability. Remarkably, the scheme of environment-assisted measurement always outperforms the scheme of weak measurement in both improving the capacity and successful probability. These notable superiorities could be attributed to the fact that environment-assisted measurement can extract additional information from the environment and thus it performs much better. Digg Facebook Google StumbleUpon Twitter
35 viewsCategory: Informatics, Physics
Entropy, Vol. 21, Pages 599: On the Logic of a Prior Based Statistical Mechanics of Polydisperse Systems: The Case of Binary Mixtures (Entropy)
Entropy, Vol. 21, Pages 597: Analytical Solutions of Fractional-Order Heat and Wave Equations by the Natural Transform Decomposition Method (Entropy)
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