Repeaterless quantum key distribution with efficient finite-key analysis overcoming the rate-distance limit

Repeaterless quantum key distribution with efficient finite-key analysis overcoming the rate-distance limit

The recently proposed Twin Field QKD protocol allows to beat the linear scaling of the key rate with the channel losses. Here, the authors extend it including a full security proof in the finite block size regime, allowing for practically-relevant secure key rates.

Bibliographic Details
Main Authors: Kento Maeda, Toshihiko Sasaki, Masato Koashi
Format: Article
Language:English
Published: Nature Publishing Group 2019-07-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-019-11008-z
id doaj-d374a0cfbf7d4369a9d9ca52c649bd39
record_format Article
spelling doaj-d374a0cfbf7d4369a9d9ca52c649bd392021-05-11T11:56:00ZengNature Publishing GroupNature Communications2041-17232019-07-011011810.1038/s41467-019-11008-zRepeaterless quantum key distribution with efficient finite-key analysis overcoming the rate-distance limitKento Maeda0Toshihiko Sasaki1Masato Koashi2Photon Science Center, Graduate School of Engineering, The University of TokyoPhoton Science Center, Graduate School of Engineering, The University of TokyoPhoton Science Center, Graduate School of Engineering, The University of TokyoThe recently proposed Twin Field QKD protocol allows to beat the linear scaling of the key rate with the channel losses. Here, the authors extend it including a full security proof in the finite block size regime, allowing for practically-relevant secure key rates.https://doi.org/10.1038/s41467-019-11008-z
collection DOAJ
language English
format Article
sources DOAJ
author Kento Maeda
Toshihiko Sasaki
Masato Koashi
spellingShingle Kento Maeda
Toshihiko Sasaki
Masato Koashi
Repeaterless quantum key distribution with efficient finite-key analysis overcoming the rate-distance limit
Nature Communications
author_facet Kento Maeda
Toshihiko Sasaki
Masato Koashi
author_sort Kento Maeda
title Repeaterless quantum key distribution with efficient finite-key analysis overcoming the rate-distance limit
title_short Repeaterless quantum key distribution with efficient finite-key analysis overcoming the rate-distance limit
title_full Repeaterless quantum key distribution with efficient finite-key analysis overcoming the rate-distance limit
title_fullStr Repeaterless quantum key distribution with efficient finite-key analysis overcoming the rate-distance limit
title_full_unstemmed Repeaterless quantum key distribution with efficient finite-key analysis overcoming the rate-distance limit
title_sort repeaterless quantum key distribution with efficient finite-key analysis overcoming the rate-distance limit
publisher Nature Publishing Group
series Nature Communications
issn 2041-1723
publishDate 2019-07-01
description The recently proposed Twin Field QKD protocol allows to beat the linear scaling of the key rate with the channel losses. Here, the authors extend it including a full security proof in the finite block size regime, allowing for practically-relevant secure key rates.
url https://doi.org/10.1038/s41467-019-11008-z
work_keys_str_mv AT kentomaeda repeaterlessquantumkeydistributionwithefficientfinitekeyanalysisovercomingtheratedistancelimit
AT toshihikosasaki repeaterlessquantumkeydistributionwithefficientfinitekeyanalysisovercomingtheratedistancelimit
AT masatokoashi repeaterlessquantumkeydistributionwithefficientfinitekeyanalysisovercomingtheratedistancelimit
_version_ 1721445778145148928

Similar Items