Exciting, cooling, and vortex trapping in a Bose-condensed gas

Citation
Rj. Marshall et al., Exciting, cooling, and vortex trapping in a Bose-condensed gas, PHYS REV A, 59(3), 1999, pp. 2085-2093
Citations number
25
Categorie Soggetti
Physics
Journal title
PHYSICAL REVIEW A
ISSN journal
10502947 → ACNP
Volume
59
Issue
3
Year of publication
1999
Pages
2085 - 2093
Database
ISI
SICI code
1050-2947(199903)59:3<2085:ECAVTI>2.0.ZU;2-Z
Abstract
A straightforward numerical technique, based on the Gross-Pitaevskii equati on, is used to generate a self-consistent description of thermally excited states of a dilute boson gas. The process of evaporative cooling is then mo deled by following the time evolution of the system using the same equation . It is shown that the subsequent rethermalization of the thermally excited state produces a cooler coherent condensate. Other results presented show that trapping vortex states with the ground state may be possible in a two- dimensional experimental environment. [S1050-2947(99)10802-3].