Quantum repeater for optical network and method

Abstract

To provide a quantum repeater network which is hardly affected by noise or decoherence.SOLUTION: A quantum repeater system includes a plurality of nodes. Each repeater device includes: a first end region; a second end region; a cavity formed from a nanofiber region, which is coupled between the first end region and the second end region, and a taper region; a plurality of atoms which is evanescent-coupled in the nanofiber region; and an optical system comprising an optical tweezer array and an optical addressing tweezer array, the optical system comprising an imaging system; and an optical cable which propagates a quantum entanglement between adjacent pairs of quantum repeaters by connecting the plurality of quantum repeater devices in series and transmitting one or more photons from a first quantum repeater device to an adjacent intermediate quantum repeater device and to an adjacent final quantum repeater device.SELECTED DRAWING: Figure 1

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