Sisyphus cooling love

Sisyphus cooling

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  • Sisyphus cooling is a mechanism through which atoms can be cooled using laser beams below the temperatures expected to be achieved by Doppler cooling. It comes about as a result of a polarization gradient created by two counter-propagating laser beams with orthogonal polarization. Atoms moving through the potential landscape created by the standing wave (created by the interference of the two counter-propagating beams) lose kinetic energy as they move to a potential maximum, at which point optical pumping moves them to a lower-energy state, thus losing the potential energy they had. (Wikipedia)

    January 31, 2012