PGPE theory of finite temperature collective modes for a trapped Bose gas

Details PGPE theory of finite temperature collective modes for a trapped Bose gas PGPE theory of finite temperature collective modes for a trapped Bose gas

2008-11-17

arxiv.org/abs/0811.2635v1

Phys. Rev. A 79, 023602 (2009)

Physics

Condensed Matter

Other Condensed Matter

15 pages, 16 figures

Scientific paper

10.1103/PhysRevA.79.023602

We develop formalism based on the projected Gross Pitaevskii equation to simulate the finite temperature collective mode experiments of Jin et al. [PRL 78, 764 (1997)]. We examine the $m=0$ and $m=2$ quadrupolar modes on the temperature range $0.51T_c-0.83T_c$ and calculate the frequencies of, and phase between, the condensate and noncondensate modes, and the condensate mode damping rate. This study is the first quantitative comparison of the projected Gross-Pitaevskii equation to experimental results in a dynamical regime.

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