Collective enhancement and suppression in Bose-Einstein condensates
Wolfgang Ketterle, Ananth P. Chikkatur, Chandra Raman
Abstract
The coherent and collective nature of Bose-Einstein condensate can enhance or suppress physical processes. Bosonic stimulation enhances scattering in already occupied states which leads to atom amplification, and the suppression of dissipation leads to superfluidity. In this paper, we review several experiments where suppression and enhancement have been observed and discuss the common roots of and differences between these phenomena.
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