Collisional relaxation in diffuse clouds of trapped bosons

G. M. Kavoulakis; C. J. Pethick; H. Smith

doi:10.1103/physreva.61.053603

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Collisional relaxation in diffuse clouds of trapped bosons

G. M. Kavoulakis·C. J. Pethick·H. Smith

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Abstract

The damping of collective modes and the relaxation of temperature anisotropies in a trapped Bose gas is determined at temperatures above the Bose-Einstein condensation temperature in the collisionless regime. We demonstrate for both cases how the effects of collisions may be treated perturbatively and calculate relaxation rates based on a variational principle. Our results are compared with experiment and with previous theoretical calculations.

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G. M. Kavoulakis, C. J. Pethick, H. Smith. 1999-10-06. Collisional relaxation in diffuse clouds of trapped bosons. https://doi.org/10.1103/physreva.61.053603

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