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ABSTRACT:
SUBMITTER: Zeng P
PROVIDER: S-EPMC9262923 | biostudies-literature | 2022 Jul
REPOSITORIES: biostudies-literature
Zeng Pei P Zhou Hongyi H Wu Weijie W Ma Xiongfeng X
Nature communications 20220707 1
Quantum key distribution - the establishment of information-theoretically secure keys based on quantum physics - is mainly limited by its practical performance, which is characterised by the dependence of the key rate on the channel transmittance R(η). Recently, schemes based on single-photon interference have been proposed to improve the key rate to [Formula: see text] by overcoming the point-to-point secret key capacity bound with interferometers. Unfortunately, all of these schemes require ch ...[more]