Velocity redistribution by standing waves |
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Authors: | Stig Stenholm Juha Javanainen |
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Affiliation: | (1) Research Institute for Theoretical Physics, University of Helsinki, Siltavuorenpenger 20, SF-00170 Helsinki 17, Finland;(2) Department of Technical Physics, Helsinki University of Technology, SF-02150 Espoo 15, Finland |
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Abstract: | This paper considers the modifications of the atomic velocity distribution imposed by a standing wave. The recoil due to induced and spontaneous processes provides an effective force on the particles. We formulate the general problem of a two-level atom in the field of two counter-propagating waves. We derive the rate equation limit for these equations and show how it can be generalized to treat a broad-band source of radiation. The connection with generalized relaxation theory is discussed. The ensuing integral equations are solved numerically for various cases of cooling and heating. |
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Keywords: | 32 34 |
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