PHASE-SENSITIVE LASER COOLING OF DOUBLE-LAMBDA ATOMS

The paper deals with the action of light pressure on a double-LAMBDA s ystem in case of four travelling optical waves. We find that light pre ssure effects are completely determined by the relative phase PHI of e xciting fields. The time evolution of the velocity distribution for di fferent values of PHI is obtained. The dependence of the transversal t emperature of the double-LAMBDA-atom beam on the phase PHI is calculat ed and it is shown that under certain conditions T can reach approxima tely 3 muK.