Tao Shang1, *, Ran Liu1, Jianwei Liu1, Yafei Hou2
CMC-Computers, Materials & Continua, Vol.64, No.3, pp. 1629-1645, 2020, DOI:10.32604/cmc.2020.09820
Abstract Establishing entanglement is an essential task of quantum communication
technology. Beyond entanglement, quantum discord, as a measure of quantum
correlation, is a necessary prerequisite to the success of entanglement distribution. To
realize efficient quantum communication based on quantum discord, in this paper, we
consider the practical advantages of continuous variables and propose a feasible
continuous-variable quantum network coding scheme based on quantum discord. By
means of entanglement distribution by separable states, it can achieve quantum
entanglement distribution from sources to targets in a butterfly network. Compared with
the representative discrete-variable quantum network coding schemes, the proposed
continuous-variable quantum network coding… More >
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