Title :
Quantum key distribution with vacua or dim pulses as decoy states
Author_Institution :
Dept. of Electr. & Comput. Eng., Toronto Univ., Ont., Canada
fDate :
27 June-2 July 2004
Abstract :
Hwang (2003) has proposed a decoy state method in quantum key distribution (QKD). In Hwang´s proposal, the average photon number of the decoy state is about two. This paper propose a new decoy state scheme using vacua or very weak coherent states as decoy states and discuss its advantages.
Keywords :
protocols; quantum cryptography; coherent state; decoy state method; dim pulse; photon number; quantum key distribution; vacua; Broadcasting; Cryptography; Physics; Polarization; Proposals; Protocols; Quantum computing; Quantum mechanics; Security; Technological innovation;
Conference_Titel :
Information Theory, 2004. ISIT 2004. Proceedings. International Symposium on
Print_ISBN :
0-7803-8280-3
DOI :
10.1109/ISIT.2004.1365174
