Supporting multiple entanglement flows through a continuous-variable quantum repeater

• URL: http://arxiv.org/abs/2203.07965v2
• Date: Thu, 13 Oct 2022 20:11:32 GMT
• Title: Supporting multiple entanglement flows through a continuous-variable quantum repeater
• Authors: Ian J. Tillman, Allison Rubenok, Saikat Guha, Kaushik P. Seshadreesan
• Abstract summary: We consider continuous, squeezed light-based entanglement flows through a repeater involving noiseless linear amplification and dual homodyne detection. By analyzing a single-repeater-enhanced channel model with asymmetric losses across the repeater, we determine optimal placements of the central repeater hub in a 4-user hub-and-spoke network.
• Score: 0.9634859579172252
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Quantum repeaters are critical to the development of quantum networks, enabling rates of entanglement distribution beyond those attainable by direct transmission. We consider multiple continuous-variable, squeezed light-based entanglement flows through a repeater involving noiseless linear amplification and dual homodyne detection. By analyzing a single-repeater-enhanced channel model with asymmetric losses across the repeater, we determine optimal placements of the central repeater hub in a 4-user hub-and-spoke network such that the rate of each entanglement flow through the hub is enhanced.

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