Quantum cryptography with correlated twin laser beams

Constantin V. Usenko, Vladyslav C. Usenko

Published 2004-03-16, updated 2004-04-28Version 3

The data transmission protocol, based on the use of a strongly correlated pair of laser beams, is proposed. The properties of the corresponding states are described in detail. The protocol is based on the strong correlation of photon numbers in both beams in each measurement. The protocol stability against the interception attempts is analyzed.