Non-ground-state Bose-Einstein condensates of trapped atoms

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Abstract
The possibility of creating a Bose condensate of trapped atoms in a non-ground-state is suggested. Such a nonequilibrium Bose condensate can be formed if one first obtains the conventional Bose condensate in the ground state and then transfers the condensed atoms to a non-ground-state by means of a resonance pumping. The properties of ground and non-ground-states are compared and plausible applications of such nonequilibrium condensates are discussed.
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