Memory-based quantum repeater in quantum information communication |
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| Authors: | Wu Xiang-Sheng |
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| Affiliation: | Department of Information Technology, Hunan Normal University, Changsha 410081, China |
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| Abstract: | This paper studies the quantum repeater in quantum information communication. We propose to introduce the photon buffer mechanism for storing photons, which uses fibre delay loops as photon memories and a programmable 1×N switcher for distributing photon delay time. Meanwhile, we also consider entanglement purification and entanglement swapping restoration at an entanglement purification or entanglement swapping failure and introduce a protection link mechanism that allows the photonic quantum repeater of a broken connection to initiate a connection restoration process. |
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| Keywords: | quantum repeater photon buffer quantum information communication |
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