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

Gy. Bene·P. Szepfalusy
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Abstract

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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Gy. Bene, P. Szepfalusy. 1998-06-05. Dielectric formalism and damping of collective modes in trapped Bose-Einstein condensed gases. https://doi.org/10.1103/physreva.58.r3391

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