Simulation of Ground-Satellite Quantum Key Exchange Using a Dedicated Atmospheric Free-Space Testbed

Paul Edwards, Colin Cochran, Peter Lynam, Adrian Blake

Research output: A Conference proceeding or a Chapter in BookConference contribution

Abstract

The University of Canberra and its research collaborators have established a dedicated free-space laser communications test-bed between a national telecommunications facility and four selected monitoring sites at distances ranging from 4 to 47 km. This test-bed is currently being used to simulate and characterize the free-space quantum channel along which secure quantum key exchanges could take place between earth stations and low earth orbit satellites, the latter acting as global key couriers. We present the results of these trials conducted under a variety of atmospheric conditions. We use the results to estimate error rates and secure key exchange rates for ground/satellite key exchange systems employing weak Poissonian pulses with more stringent security requirements than are sometimes quoted
Original languageEnglish
Title of host publicationProceedings of SPIE Volume 5161: Quantum Communications and Quantum Imaging
EditorsRonald E Meyers, Yanhua Shih
Place of PublicationUSA
PublisherURSI Commission F Triennium Open Symposium
Pages152-160
Number of pages9
ISBN (Print)9780819450340
Publication statusPublished - 2004
EventSPIE, Quantum Communications and Quantum Imaging - San Diego, California, United States
Duration: 6 Aug 20038 Aug 2003

Conference

ConferenceSPIE, Quantum Communications and Quantum Imaging
CountryUnited States
CityCalifornia
Period6/08/038/08/03

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