Finite-size security of continuous-variable quantum key distribution with digital signal processing

While continuous-variable QKD presents many experimental advantages, a full security proof that addresses the most general attacks and digitized signals in the finite-size regime has so far been lacking. Here, the authors fill this gap in the case of a protocol with a binary phase modulation.

Bibliographic Details
Main Authors: Takaya Matsuura, Kento Maeda, Toshihiko Sasaki, Masato Koashi
Format: Article
Language:English
Published: Nature Publishing Group 2021-01-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-020-19916-1
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spelling doaj-6785ce7aaccb45aa95e9b0768989fb702021-01-17T12:12:47ZengNature Publishing GroupNature Communications2041-17232021-01-0112111310.1038/s41467-020-19916-1Finite-size security of continuous-variable quantum key distribution with digital signal processingTakaya Matsuura0Kento Maeda1Toshihiko Sasaki2Masato Koashi3Department of Applied Physics, Graduate School of Engineering, The University of TokyoDepartment of Applied Physics, Graduate School of Engineering, The University of TokyoDepartment of Applied Physics, Graduate School of Engineering, The University of TokyoDepartment of Applied Physics, Graduate School of Engineering, The University of TokyoWhile continuous-variable QKD presents many experimental advantages, a full security proof that addresses the most general attacks and digitized signals in the finite-size regime has so far been lacking. Here, the authors fill this gap in the case of a protocol with a binary phase modulation.https://doi.org/10.1038/s41467-020-19916-1
collection DOAJ
language English
format Article
sources DOAJ
author Takaya Matsuura
Kento Maeda
Toshihiko Sasaki
Masato Koashi
spellingShingle Takaya Matsuura
Kento Maeda
Toshihiko Sasaki
Masato Koashi
Finite-size security of continuous-variable quantum key distribution with digital signal processing
Nature Communications
author_facet Takaya Matsuura
Kento Maeda
Toshihiko Sasaki
Masato Koashi
author_sort Takaya Matsuura
title Finite-size security of continuous-variable quantum key distribution with digital signal processing
title_short Finite-size security of continuous-variable quantum key distribution with digital signal processing
title_full Finite-size security of continuous-variable quantum key distribution with digital signal processing
title_fullStr Finite-size security of continuous-variable quantum key distribution with digital signal processing
title_full_unstemmed Finite-size security of continuous-variable quantum key distribution with digital signal processing
title_sort finite-size security of continuous-variable quantum key distribution with digital signal processing
publisher Nature Publishing Group
series Nature Communications
issn 2041-1723
publishDate 2021-01-01
description While continuous-variable QKD presents many experimental advantages, a full security proof that addresses the most general attacks and digitized signals in the finite-size regime has so far been lacking. Here, the authors fill this gap in the case of a protocol with a binary phase modulation.
url https://doi.org/10.1038/s41467-020-19916-1
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