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arXiv · 1509.08554

Quantum entanglement degrees amplifier

Xiang-Yao Wu·Ji Ma·Xiao-Jing Liu·Yu Liang·Xiang-Dong Meng·Hong Li·Si-Qi Zhang
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Abstract

The quantum entangled degrees of entangled states become smaller with the transmission distance increasing, how to keep the purity of quantum entangled states is the puzzle in quantum communication. In the paper, we have designed a new type entanglement degrees amplifier by one-dimensional photonic crystal, which is similar as the relay station of classical electromagnetic communication. We find when the entangled states of two-photon and three-photon pass through photonic crystal, their entanglement degrees can be magnified, which make the entanglement states can be long range propagation and the quantum communication can be really realized.

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Xiang-Yao Wu, Ji Ma, Xiao-Jing Liu, Yu Liang, Xiang-Dong Meng, Hong Li, Si-Qi Zhang. 2015-09-29. Quantum entanglement degrees amplifier. https://arxiv.org/abs/1509.08554

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