Quantum channel based on correlated twin laser beams

This work is the development and analysis of the recently proposed quantum cryptographic protocol, based on the use of the two-mode coherently correlated states. The protocol is supplied with the cyrptographic control procedures. The channel error properties and stability against eavesdropping are examined. State detection features are proposed.Comment: The Seventh International Conference on Quantum Communication, Measurement and Computing,Glasgow 200

The effect of coordinate and momentum uncertainties on collision of coherent electrons

We have examined the head-on collision of two electrons in approximation of coherent states. We have shown that the character of collision depends mainly on ratio of initial relative electron's momentum to momentum uncertainty of electrons. When this ratio becomes greater then 1, the Coulomb interaction does not practically influence the scattering.Comment: X International Conference on Quantum Optics Minsk, BELARUS, May 30 - June 3, 200