Title :
Effect of a weak magnetic field on quantum cryptography links
Author :
Brodsky, Maryjane ; Boroditsky, M. ; Feuer, M.D. ; Sirenko, A.
Author_Institution :
AT&T Labs Res., Middletown, NJ, USA
Abstract :
We study the performance of a commercial bidirectional quantum key distribution system in the presence of a weak magnetic field (about 50 μT) applied along the fiber axis. We observe a quadratic increase in quantum bit error rate with the angle of Faraday rotation.
Keywords :
Faraday effect; error statistics; optical fibre communication; optical rotation; quantum cryptography; quantum optics; 50 muT; Faraday rotation; bidirectional quantum key distribution system; quantum bit error rate; quantum cryptography links; weak magnetic field effect;
Conference_Titel :
Optical Communication, 2005. ECOC 2005. 31st European Conference on
Conference_Location :
IET
Print_ISBN :
0-86341-543-1
