Gaussian repeater chains using only Gaussian operations and homodyne detection cannot beat direct transmission for the quantum capacity of pure-loss bosonic channels.
Pirandola, End-to-end capacities of a quantum communication network, Communications Physics 2 (1) (May 2019)
3 Pith papers cite this work. Polarity classification is still indexing.
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UNVERDICTED 3representative citing papers
All-photonic MDI-QKD protocol surpasses the single-repeater bound with key-rate scaling approaching η^{2/5} when quantum signals travel at two-thirds classical speed, using temporal multiplexing to improve rates without perfect memories.
NetSquid simulations characterize how memory quality, noise, distances, switches, purification and error correction affect end-to-end fidelity in entanglement-based quantum networks and yield design guidelines.
citing papers explorer
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No-Go Theorem for Gaussian Quantum Repeaters from Fractional Extendibility
Gaussian repeater chains using only Gaussian operations and homodyne detection cannot beat direct transmission for the quantum capacity of pure-loss bosonic channels.
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All-photonic quantum key distribution beyond the single-repeater bound
All-photonic MDI-QKD protocol surpasses the single-repeater bound with key-rate scaling approaching η^{2/5} when quantum signals travel at two-thirds classical speed, using temporal multiplexing to improve rates without perfect memories.
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Simulation of entanglement based quantum networks for performance characterization
NetSquid simulations characterize how memory quality, noise, distances, switches, purification and error correction affect end-to-end fidelity in entanglement-based quantum networks and yield design guidelines.