Abstract
Evaporative cooling has been demonstrated to be a useful method for cooling atomic hydrogen.1 In the case of alkali atoms, magneto-optical trapping and cooling with subsequent cooling in a polarization- gradient molasses can prepare dense samples of atoms with temperatures within ten photon recoils that can then be efficiently coupled into a purely magnetic trap.2 Evaporative cooling can then be used to cool the sample to well below the photon recoil limit and, perhaps, down to the quantum regime and Bose-Einstein condensation (BEC).
© 1995 Optical Society of America
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