Title :
Decoy pulse quantum key distribution for practical purposes
Author :
Dynes, J.F. ; Yuan, Z.L. ; Sharpe, A.W. ; Shields, A.J.
Author_Institution :
Cambridge Res. Lab., Toshiba Res. Eur. Ltd., Cambridge
fDate :
10/1/2008 12:00:00 AM
Abstract :
Experimental one-way decoy pulse quantum key distribution running for 25 h over a fibre distance of 25 km is reported. The decoy pulse protocol employed uses two weak pulses (signal and decoy) and one vacuum pulse. In parallel to the key sifting, simultaneous error correction and privacy amplification yielding a final, average secure key rate of 5.7 kbps are performed. The random bits from the secure keys are found to pass stringent statistical tests.
Keywords :
error correction; optical fibre communication; quantum cryptography; quantum optics; statistical testing; bit rate 5.7 kbit/s; decoy pulse; distance 25 km; error correction; privacy amplification; quantum key distribution; random bits; time 25 hr;
Journal_Title :
Optoelectronics, IET
DOI :
10.1049/iet-opt:20070091
