Physics – Condensed Matter – Statistical Mechanics
Scientific paper
1998-03-23
Physics
Condensed Matter
Statistical Mechanics
8 pages, 10 encapsulated PostScript figures
Scientific paper
10.1103/PhysRevA.59.1461
We examine the Gross-Pitaevskii (GP) model for Bose-Einstein condensates in parabolic traps with attractive interactions. The decay of metastable condensates is investigated by applying the instanton formalism to the GP field theory. Employing various dynamical trial states, we derive within a coherent state path integral approach a collective coordinate description in terms of the condensate radius, in agreement with (and extending) earlier results. We then solve numerically for the complete instanton field configuration and compare with the collective coordinate approach. Adjusting only the effective mass of the collective coordinate, the two schemes are then in good agreement.
Arovas Daniel P.
Freire Jose A.
No associations
LandOfFree
Collapse of a Bose Condensate with Attractive Interactions does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Collapse of a Bose Condensate with Attractive Interactions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Collapse of a Bose Condensate with Attractive Interactions will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-680709