全部 标题 作者
关键词 摘要

Physics  2004 

Unconditionally secure quantum key distribution over 50km of standard telecom fibre

DOI: 10.1049/el:20045038

Full-Text   Cite this paper   Add to My Lib

Abstract:

We demonstrate a weak pulse quantum key distribution system using the BB84 protocol which is secure against all individual attacks, including photon number splitting. By carefully controlling the weak pulse intensity we demonstrate the maximum secure bit rate as a function of the fibre length. Unconditionally secure keys can be formed for standard telecom fibres exceeding 50 km in length.

Full-Text

comments powered by Disqus