Unknown

Dataset Information

0

Mode-pairing quantum key distribution.


ABSTRACT: 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 challenging global phase locking to realise a stable long-arm single-photon interferometer with a precision of approximately 100 nm over fibres that are hundreds of kilometres long. Aiming to address this problem, we propose a mode-pairing measurement-device-independent quantum key distribution scheme in which the encoded key bits and bases are determined during data post-processing. Using conventional second-order interference, this scheme can achieve a key rate of [Formula: see text] without global phase locking when the local phase fluctuation is mild. We expect this high-performance scheme to be ready-to-implement with off-the-shelf optical devices.

SUBMITTER: Zeng P 

PROVIDER: S-EPMC9262923 | biostudies-literature |

REPOSITORIES: biostudies-literature

Similar Datasets

| S-EPMC5309763 | biostudies-literature
| S-EPMC9470693 | biostudies-literature
| S-EPMC8128898 | biostudies-literature
| S-EPMC3613795 | biostudies-other
| S-EPMC5904211 | biostudies-literature
| S-EPMC6882898 | biostudies-literature
| S-EPMC4876458 | biostudies-literature
| S-EPMC4703867 | biostudies-other
| S-EPMC11364819 | biostudies-literature
| S-EPMC6797752 | biostudies-literature