Dynamic depletion in a Bose condensate via a sudden increase of the scattering length
C. K. Law, P. T. Leung, M. C. Chu
Abstract
We examine the time-dependent quantum depletion of a trapped Bose condensate arising from a rapid increase of the scattering length. Our solution indicates that a significant buildup of incoherent atoms can occur within a characteristic time short compared with the harmonic trap period. We discuss how the depletion density and the characteristic time depend on the physical parameters of the condensate.
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