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Collisional relaxation in diffuse clouds of trapped bosons | | G. M. Kavoulakis
; C. J. Pethick
; H. Smith
; | | Date: |
6 Oct 1999 | | Journal: | Phys. Rev. A, 61 (2000) 053603 | | Subject: | cond-mat | | Affiliation: | NORDITA), C. J. Pethick (NORDITA), and H. Smith (Oersted Lab., Univ. of Copenhagen | | 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. | | Source: | arXiv, cond-mat/9910081 | | Services: | Forum | Review | PDF | Favorites | |
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