Dielectric formalism and damping of collective modes in trapped Bose-Einstein condensed gases

Details Dielectric formalism and damping of collective modes in trapped Bose-Einstein condensed gases Dielectric formalism and damping of collective modes in trapped Bose-Einstein condensed gases

1998-06-05

arxiv.org/abs/cond-mat/9806079v1

Physics

Condensed Matter

Statistical Mechanics

4 pages, no figures, RevTeX

Scientific paper

10.1103/PhysRevA.58.R3391

We present the general dielectric formalism for Bose-Einstein condensed
systems in external potential at finite temperatures. On the basis of a model
arising within this framework as a first approximation in an intermediate
temperature region for large condensate we calculate the damping of low-energy
excitations in the collisionless regime.

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