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Quantum repeaters for communication
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In quantum communication via noisy channels, the error probability scales exponentially with the length of the channel. We present a scheme of a quantum repeater that overcomes this limitation. The central idea is to connect a string of (imperfect) entangled pairs of particles by using a novel nested purification protocol, thereby creating a single distant pair of high fidelity. The scheme tolerates general errors on the percent level.
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Cited by 2 Pith papers
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Making Quantum Networks Work: Routing, Calibration, and Programmable Quantum Repeaters
The thesis introduces grey-box routing using partial node knowledge, optimal calibration schedules for repeater chains, and a programmable ISA to improve fidelity and throughput in quantum repeater networks under real...
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Layer-Wise Security Framework and Analysis for the Quantum Internet
A layer-by-layer security framework for the quantum internet that catalogs known attacks, countermeasures, and a readiness table, supported by three illustrative simulations.
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