Please use this identifier to cite or link to this item: http://hdl.handle.net/2445/9580
Title: Temperature-induced resonances and Landau damping of collective modes in Bose-Einstein condensed gases in spherical traps
Author: Guilleumas, Montserrat
Pitaevskii, L. P. (Lev Petrovich)
Keywords: Matèria condensada
Condensació de Bose-Einstein
Pertorbació (Dinàmica quàntica)
Excitació nuclear
Equacions d'ones
Condensed matter
Bose-Einstein condensation
Perturbation (Quantum dynamics)
Nuclear excitation
Issue Date: 1999
Publisher: The American Physical Society
Abstract: Interaction between collective monopole oscillations of a trapped Bose-Einstein condensate and thermal excitations is investigated by means of perturbation theory. We assume spherical symmetry to calculate the matrix elements by solving the linearized Gross-Pitaevskii equations. We use them to study the resonances of the condensate induced by temperature when an external perturbation of the trapping frequency is applied and to calculate the Landau damping of the oscillations.
Note: Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevA.61.013602
It is part of: Physical Review A, 1999, vol. 61, núm. 1, p. 013602.
URI: http://hdl.handle.net/2445/9580
ISSN: 1050-2947
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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