Medium-range terrestrial free-space QKD performance modelling and analysis

Brougham, T. and Oi, D. K. L.; Padgett, Miles J. and Bongs, Kai and Fedrizzi, Alessandro and Politi, Alberto, eds. (2021) Medium-range terrestrial free-space QKD performance modelling and analysis. In: Quantum Technology. Proceedings of SPIE - The International Society for Optical Engineering, 11881 . SPIE, GBR. ISBN 9781510646063 (https://doi.org/10.1117/12.2599045)

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Abstract

Medium-range terrestrial free-space quantum key distribution systems enable widespread secure networked communications in dense urban environments, where it would be infeasible to install a large number of short optical fibre links. Such networks need to perform over a wide range of conditions and their design has to balance key rate maximisation versus robust key generation over the greatest range of circumstances. Practicalities, such as manufacturability and deployment, further constrain the design space. Here, we examine challenges in translating experiment into engineering reality and identify efficient BB84 weak coherent pulse-decoy state protocol parameter regimes suitable for medium-range QKD systems considering likely system performance and environmental conditions.

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  Item type:	Book Section
  ID code:	79822
  Dates:	Date Event 6 October 2021 Published 30 September 2021 Published Online 14 July 2021 Accepted
  Notes:	Copyright 2021 Society of Photo‑Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this publication for a fee or for commercial purposes, and modification of the contents of the publication are prohibited.
  Subjects:	Science > Physics > Optics. Light Technology > Electrical engineering. Electronics Nuclear engineering Science > Mathematics > Electronic computers. Computer science
  Department:	Faculty of Science > Physics
  Depositing user:	Pure Administrator
  Date deposited:	04 Mar 2022 10:04
  Last modified:	22 Apr 2024 00:09
  Related URLs:	Scopus publication
  URI:	https://strathprints.strath.ac.uk/id/eprint/79822