The University of Southampton
University of Southampton Institutional Repository

Diversity space of multicarrier continuous-variable quantum key distribution

Diversity space of multicarrier continuous-variable quantum key distribution
Diversity space of multicarrier continuous-variable quantum key distribution

The diversity space of multicarrier continuous-variable quantum key distribution (CVQKD) is defined. The diversity space utilizes the resources that are injected into the transmission by the additional degrees of freedom of the multicarrier modulation. We prove that the exploitable extra degree of freedom in a multicarrier CVQKD scenario significantly extends the possibilities of single-carrier CVQKD. The manifold extraction allows for the parties to reach decreased error probabilities by utilizing those extra resources of a multicarrier transmission that are not available in a single-carrier CVQKD setting. We define the multidimensional manifold space of multicarrier CVQKD and the optimal tradeoff between the available degrees of freedom of the multicarrier transmission. We extend the manifold extraction for the multiple-access AMQD-MQA (multiuser quadrature allocation) multicarrier protocol. The additional resources of multicarrier CVQKD allow the achievement of significant performance improvements that are particularly crucial in an experimental scenario.

cryptography, networking, quantum communication, quantum key distribution, security
1074-5351
Gyongyosi, Laszlo
bbfffd90-dfa2-4a08-b5f9-98376b8d6803
Imre, Sandor
2def242c-1cb7-4b12-8a16-351a5a36e041
Gyongyosi, Laszlo
bbfffd90-dfa2-4a08-b5f9-98376b8d6803
Imre, Sandor
2def242c-1cb7-4b12-8a16-351a5a36e041

Gyongyosi, Laszlo and Imre, Sandor (2019) Diversity space of multicarrier continuous-variable quantum key distribution. International Journal of Communication Systems, [e4003]. (doi:10.1002/dac.4003).

Record type: Article

Abstract

The diversity space of multicarrier continuous-variable quantum key distribution (CVQKD) is defined. The diversity space utilizes the resources that are injected into the transmission by the additional degrees of freedom of the multicarrier modulation. We prove that the exploitable extra degree of freedom in a multicarrier CVQKD scenario significantly extends the possibilities of single-carrier CVQKD. The manifold extraction allows for the parties to reach decreased error probabilities by utilizing those extra resources of a multicarrier transmission that are not available in a single-carrier CVQKD setting. We define the multidimensional manifold space of multicarrier CVQKD and the optimal tradeoff between the available degrees of freedom of the multicarrier transmission. We extend the manifold extraction for the multiple-access AMQD-MQA (multiuser quadrature allocation) multicarrier protocol. The additional resources of multicarrier CVQKD allow the achievement of significant performance improvements that are particularly crucial in an experimental scenario.

Text
Gyongyosi_et_al-2019-International_Journal_of_Communication_Systems - Version of Record
Available under License Creative Commons Attribution.
Download (597kB)

More information

Accepted/In Press date: 18 April 2019
e-pub ahead of print date: 27 June 2019
Keywords: cryptography, networking, quantum communication, quantum key distribution, security

Identifiers

Local EPrints ID: 432442
URI: http://eprints.soton.ac.uk/id/eprint/432442
ISSN: 1074-5351
PURE UUID: 167a74ef-33c9-47f3-8ac2-ddab4117fd90

Catalogue record

Date deposited: 15 Jul 2019 16:30
Last modified: 16 Dec 2019 17:34

Export record

Altmetrics

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.

×