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arXiv · 0907.0050

Single-photon entanglement concentration for long-distance quantum communication

Yu-Bo Sheng·Fu-Guo Deng·Hong-Yu Zhou
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Abstract

We present a single-photon entanglement concentration protocol for long-distance quantum communication with quantum nondemolition detector. It is the first concentration protocol for single-photon entangled states and it dose not require the two parties of quantum communication to know the accurate information about the coefficient $α$ and $β$ of the less entangled states. Also, it does not resort to sophisticated single-photon detectors, which makes this protocol more feasible in current experiments. Moreover, it can be iterated to get a higher efficiency and yield. All these advantages maybe make this protocol have more practical applications in long-distance quantum communication and quantum internet.

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Yu-Bo Sheng, Fu-Guo Deng, Hong-Yu Zhou. 2010-01-12. Single-photon entanglement concentration for long-distance quantum communication. https://arxiv.org/abs/0907.0050

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