Tapster, P.R., Gorman, P.M., Benton, D.M., Taylor, D.M. and Lowans, B.S. (2005). Developments towards practical free-space quantum cryptography. IN: Quantum information and computation III. Donkor, Eric J.; Pirich, Andrew R. and Brandt, Howard E. (eds) SPIE proceedings . USA: SPIE.
Abstract
We describe a free space quantum cryptography system which is designed to allow continuous unattended key exchanges for periods of several days, and over ranges of a few kilometres. The system uses a four-laser faint-pulse transmission system running at a pulse rate of 10MHz to generate the required four alternative polarization states. The receiver module similarly automatically selects a measurement basis and performs polarization measurements with four avalanche photodiodes. The controlling software can implement the full key exchange including sifting, error correction, and privacy amplification required to generate a secure key.
Publication DOI: | https://doi.org/10.1117/12.605539 |
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Divisions: | College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT) |
Additional Information: | P. R. Tapster ; P. M. Gorman ; D. M. Benton ; D. M. Taylor and B. S. Lowans, "Developments towards practical free-space quantum cryptography", Proc. SPIE 5815, Quantum Information and Computation III, 176 (June 02, 2005). Copyright 2005 Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic electronic or print reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited. doi: http://dx.doi.org/10.1117/12.605539 |
Event Title: | Quantum Information and Computation III |
Event Type: | Other |
Event Dates: | 2005-03-28 |
Last Modified: | 05 Aug 2024 13:08 |
Date Deposited: | 03 Nov 2014 15:35 |
Full Text Link: | |
Related URLs: |
http://www.scop ... tnerID=8YFLogxK
(Scopus URL) |
PURE Output Type: | Conference contribution |
Published Date: | 2005-01-01 |
Authors: |
Tapster, P.R.
Gorman, P.M. Benton, D.M. ( ![]() Taylor, D.M. Lowans, B.S. |