Abstract

The effects of different kinds of communication channels on the key indexes such as bit error rate and communication rate of quantum communication system, represented by quantum secure communication system, are systematically studied. For the actual channel, the transformation of quantum states caused by physical effects such as loss, dispersion and polarization mode dispersion in optical fiber channel is analyzed. With building in the spatial channel noise experimental data under different weather conditions, the mathematical model is established, and the software is designed and implemented.

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