Supporting multiple entanglement flows through a continuous-variable quantum repeater
Ian Tillman, Allison Rubenok, Saikat Guha, Kaushik Parasuram Seshadreesan · Physical Review A · 2022
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 half-channel losses across the repeater, we determine placements of the central repeater hub in a four-user hub-and-spoke network that enhance the rate of each entanglement flow.