Publication
Title
Collective excitations in a confined, interacting dilute Bose-condensed fluid
Author
Abstract
In the Thomas - Fermi (TF) regime, S. Stringari [Phys. Rev. Lett., 77, 2360 ( 1996)] established the hydrodynamic normal modes of an interacting dilute Bose-condensed fluid confined in an isotropic harmonic trap. Here, we extend this treatment beyond the TF condensate using the work of B. Hu, G. Huang and Y. Ma [ Phys. Rev. A, 69, 063608 ( 2004)] as a starting point. Both numerical results for low-lying eigenfrequencies, for various angular momentum quantum numbers l and n = 0, and also samples of corresponding eigenfunctions, are presented. Finally, eigenfrequencies are also given for some collective excitations in an axially symmetrical trap.
Language
English
Source (journal)
Physics and chemistry of liquids. - London
Publication
London : 2005
ISSN
0031-9104
Volume/pages
43:2(2005), p. 157-165
ISI
000228670100005
Full text (Publishers DOI)
UAntwerpen
Faculty/Department
Research group
Publication type
Subject
Affiliation
Publications with a UAntwerp address
External links
Web of Science
Record
Identification
Creation 29.02.2012
Last edited 06.05.2017
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