Formation of a beam of cold atoms by laser frequency tuning

We report the possibility of producing a beam of slow atoms with a characteristic velocity of ~1 m s^-1 by the 'chirp' method, namely, cooling by variable-frequency radiation. Method modifications are considered, which substantially reduce dimensions of the slower, the width of the longitudinal velocity distribution of the atomic beam, and the area of its cross section. The modified method of laser radiation frequency tuning for cooling rubidium atoms is mathematically simulated.