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Air-to-ground quantum communication

Nauerth, Sebastian and Moll, Florian and Rau, Markus and Fuchs, Christian and Horwath, Joachim and Frick, Stefan and Weinfurter, Harald (2013) Air-to-ground quantum communication. Nature Photonics. Nature Publishing Group. DOI: 10.1038/nphoton.2013.46 ISSN 1749-4885

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Official URL: http://www.nature.com/nphoton/journal/vaop/ncurrent/full/nphoton.2013.46.html

Abstract

Quantum key distribution (QKD) is the first commercial application in the new field of quantum information, with first routine applications in government and financial sectors and with successful demonstrations of trusted node networks. Today, the main goal is efficient long-range key distribution via either quantum repeaters or satellites, with a view to enabling global secure communication. En route to achieving QKD via satellites, a free-space demonstration of secure key distribution was performed between two ground stations, over a distance of 144 km. This scenario is comparable to links between satellites in low Earth orbit and ground stations with respect to both attenuation and fluctuations. However, key exchange with rapidly moving platforms remained to be demonstrated. Here, we prove, for the first time, the feasibility of BB84 QKD between an aeroplane and a ground station. By establishing a stable and low-noise quantum communication channel with the aeroplane moving at 290 km h−1 at a distance of 20 km—that is, 4 mrad s−1—our results are representative of typical communication links to satellites or to high-altitude platforms.

Item URL in elib:https://elib.dlr.de/81410/
Document Type:Article
Additional Information:Press release: http://www.dlr.de/dlr/en/desktopdefault.aspx/tabid-10081/151_read-6655//year-all/#gallery/4342
Title:Air-to-ground quantum communication
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Nauerth, SebastianLMUUNSPECIFIED
Moll, FlorianDLRUNSPECIFIED
Rau, MarkusLMUUNSPECIFIED
Fuchs, ChristianDLRUNSPECIFIED
Horwath, JoachimDLRUNSPECIFIED
Frick, StefanLMUUNSPECIFIED
Weinfurter, HaraldLMUUNSPECIFIED
Date:31 March 2013
Journal or Publication Title:Nature Photonics
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI :10.1038/nphoton.2013.46
Publisher:Nature Publishing Group
ISSN:1749-4885
Status:Published
Keywords:Quantum key distribution, flight campaign, free-space optical communications, optical tracking, KNOCGOP
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Communication and Navigation
DLR - Research area:Raumfahrt
DLR - Program:R KN - Kommunikation und Navigation
DLR - Research theme (Project):R - Vorhaben Multimedia Satellitennetze
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Communication and Navigation > Satellite Networks
Deposited By: Moll, Florian
Deposited On:03 Jun 2013 08:51
Last Modified:06 Sep 2019 15:21

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