Photon correlation of correlated photons. Experimental aspects of quantum cryptography and computation

J G Rarity, P R Tapster

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

Abstract

We introduce the concept of encoding information on single photons using interference. and describe progress towards use of this in secure key sharing (quantum cryptography). Both one- and two-photon interference based quantum cryptography schemes are described. System performance is limited by the efficiency of single photon counting detectors at communications wavelengths. Finally we measure the intensity fluctuations of pulsed spontaneously emitted light and show that narrow band filters increase the measured second moment in line with thermal light.

Original languageEnglish
Title of host publicationLIGHT SCATTERING AND PHOTON CORRELATION SPECTROSCOPY
EditorsER Pike, JB Abbiss
Place of PublicationDORDRECHT
PublisherSpringer
Pages247-262
Number of pages16
ISBN (Print)0-7923-4736-6
Publication statusPublished - 1997
EventNATO Advanced Research Workshop on Light Scattering and Photon Correlation Spectroscopy - KRAKOW, Poland
Duration: 26 Aug 199630 Aug 1996

Workshop

WorkshopNATO Advanced Research Workshop on Light Scattering and Photon Correlation Spectroscopy
CountryPoland
CityKRAKOW
Period26/08/9630/08/96

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