CUED Publications database

Continuous operation of high bit rate quantum key distribution

Dixon, AR and Yuan, ZL and Dynes, JF and Sharpe, AW and Shields, AJ (2010) Continuous operation of high bit rate quantum key distribution. Applied Physics Letters, 96. ISSN 0003-6951

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Abstract

We demonstrate a quantum key distribution with a secure bit rate exceeding 1 Mbit/s over 50 km fiber averaged over a continuous 36 h period. Continuous operation of high bit rates is achieved using feedback systems to control path length difference and polarization in the interferometer and the timing of the detection windows. High bit rates and continuous operation allows finite key size effects to be strongly reduced, achieving a key extraction efficiency of 96% compared to keys of infinite lengths. © 2010 American Institute of Physics.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div B > Photonics
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:13
Last Modified: 11 Apr 2021 20:36
DOI: 10.1063/1.3385293