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arXiv · 1803.05602

Filling the gap between quantum no-cloning and classical duplication

Ming-hao Wang·Qing-yu Cai
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Abstract

The correspondence principle suggests that a quantum description for the microworld should be naturally transited to a classical description within the classical limit. However, it seems that there is a large gap between quantum no-cloning and classical duplication. In this paper, we prove that a classical duplication process can be realized using a universal quantum cloning machine. In the classical world, information is encoded in a large number of quantum states instead of one quantum state. When tolerable errors occur in a small number of the quantum states, the fidelity of duplicated copies of classical information can approach unity. That is, classical information duplication is equivalent to a redundant quantum cloning process with self-correcting.

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Ming-hao Wang, Qing-yu Cai. 2018-03-15. Filling the gap between quantum no-cloning and classical duplication. https://arxiv.org/abs/1803.05602

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