The University of Southampton
University of Southampton Institutional Repository

Near-maximal two-photon entanglement for quantum communications at 2.1 μm

Near-maximal two-photon entanglement for quantum communications at 2.1 μm
Near-maximal two-photon entanglement for quantum communications at 2.1 μm
Owing to a reduced solar background and low propagation losses in the atmosphere, the 2- to 2.5-μm waveband is a promising candidate for daylight quantum communication. This spectral region also offers low losses and low dispersion in hollow-core fibers and in silicon waveguides. We demonstrate
near-maximally entangled photon pairs at 2.1 μm that could support device-independent quantum key distribution (DIQKD), assuming sufficiently high channel efficiencies. The state corresponds to a positive secure-key rate (0.254 bits/pair, with a quantum bit error rate of 3.8%) based on measurements in a
laboratory setting with minimal channel loss and transmission distance. This is promising for the future implementation of DIQKD at 2.1 μm.
2331-8422
Dada, Adetunmise
59df6fc9-3ea0-4381-9be9-7834f0e77922
Kaniewski, Jedrzej
1b6dfac1-1334-4867-8ef9-730eab9ca5af
Gawith, Corin
926665c0-84c7-4a1d-ae19-ee6d7d14c43e
Lavery, Martin P.J.
375799be-9e2a-4db6-9f07-2bd69554988b
Hadfield, Robert
8c33cbe7-4c71-4198-9a96-029bbea93b22
Faccio, Daniele
4bc95171-0d90-4392-8333-528cbcb80e84
Clerici, Matteo
9567b2f6-2f8f-4f04-8a74-eba390c4a430
Dada, Adetunmise
59df6fc9-3ea0-4381-9be9-7834f0e77922
Kaniewski, Jedrzej
1b6dfac1-1334-4867-8ef9-730eab9ca5af
Gawith, Corin
926665c0-84c7-4a1d-ae19-ee6d7d14c43e
Lavery, Martin P.J.
375799be-9e2a-4db6-9f07-2bd69554988b
Hadfield, Robert
8c33cbe7-4c71-4198-9a96-029bbea93b22
Faccio, Daniele
4bc95171-0d90-4392-8333-528cbcb80e84
Clerici, Matteo
9567b2f6-2f8f-4f04-8a74-eba390c4a430

Dada, Adetunmise, Kaniewski, Jedrzej, Gawith, Corin, Lavery, Martin P.J., Hadfield, Robert, Faccio, Daniele and Clerici, Matteo (2021) Near-maximal two-photon entanglement for quantum communications at 2.1 μm. arXiv.

Record type: Article

Abstract

Owing to a reduced solar background and low propagation losses in the atmosphere, the 2- to 2.5-μm waveband is a promising candidate for daylight quantum communication. This spectral region also offers low losses and low dispersion in hollow-core fibers and in silicon waveguides. We demonstrate
near-maximally entangled photon pairs at 2.1 μm that could support device-independent quantum key distribution (DIQKD), assuming sufficiently high channel efficiencies. The state corresponds to a positive secure-key rate (0.254 bits/pair, with a quantum bit error rate of 3.8%) based on measurements in a
laboratory setting with minimal channel loss and transmission distance. This is promising for the future implementation of DIQKD at 2.1 μm.

This record has no associated files available for download.

More information

Published date: 22 June 2021

Identifiers

Local EPrints ID: 452926
URI: http://eprints.soton.ac.uk/id/eprint/452926
ISSN: 2331-8422
PURE UUID: ce2b8b72-6e60-4f08-a4f1-98a3fcd79792
ORCID for Corin Gawith: ORCID iD orcid.org/0000-0002-3502-3558

Catalogue record

Date deposited: 06 Jan 2022 17:50
Last modified: 17 Mar 2024 02:50

Export record

Contributors

Author: Adetunmise Dada
Author: Jedrzej Kaniewski
Author: Corin Gawith ORCID iD
Author: Martin P.J. Lavery
Author: Robert Hadfield
Author: Daniele Faccio
Author: Matteo Clerici

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×