Enhanced Superdense Coding over Correlated Amplitude Damping Channel
AbstractQuantum 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. View Full-Text
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Li, Y.-L.; Wei, D.-M.; Zu, C.-J.; Xiao, X. Enhanced Superdense Coding over Correlated Amplitude Damping Channel. Entropy 2019, 21, 598.
Li Y-L, Wei D-M, Zu C-J, Xiao X. Enhanced Superdense Coding over Correlated Amplitude Damping Channel. Entropy. 2019; 21(6):598.Chicago/Turabian Style
Li, Yan-Ling; Wei, Dong-Mei; Zu, Chuan-Jin; Xiao, Xing. 2019. "Enhanced Superdense Coding over Correlated Amplitude Damping Channel." Entropy 21, no. 6: 598.
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