This article is cited in 1 paper

ATOMS, SPECTRA, RADIATIONS

Dynamic effect of collision phase lockout in a gas of cold “dark” atoms

L. V. Il'ichev

Institute of Automation and Electrometry, Siberian Branch of Russian Academy of Sciences, Novosibirsk

Abstract: In a gas of slow atoms exhibiting the effect of coherent population trapping (CPT) on the sublevels of the ground state in a spatially nonuniform light field, rare collisions destroying the CPT state initiate the irreversible exchange of momentum between radiation and atoms. This exchange is manifested as an additional force that acts on the particles and is of geometric origin; i.e., it is determined only by the structure of the field of local CPT states. When this force is not masked by the standard collision change in atomic momentum, the observation of the kinetics of the particles may provide information on the physics of the collisions.

PACS: 32.80.Qk, 42.50.-p

Received: 16.12.2004
Revised: 14.01.2005

 English version: Journal of Experimental and Theoretical Physics Letters, 2005, 81:5, 205–208

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