Temperature-induced resonances and Landau damping of collective modes in Bose-Einstein condensed gases in spherical traps

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RECERCAT Home > Universitat de Barcelona > Física Quàntica i Astrofísica > Articles publicats en revistes (Física Quàntica i Astrofísica) > View document

To access the full text documents, please follow this link: http://hdl.handle.net/2445/9580

dc.contributor	Universitat de Barcelona
dc.contributor.author	Guilleumas, Montserrat
dc.contributor.author	Pitaevskii, L. P. (Lev Petrovich)
dc.date	2009-10-06T10:30:31Z
dc.date	2009-10-06T10:30:31Z
dc.date	1999
dc.identifier.citation	1050-2947
dc.identifier.citation	522509
dc.identifier.uri	http://hdl.handle.net/2445/9580
dc.format	10 p.
dc.format	application/pdf
dc.language.iso	eng
dc.publisher	The American Physical Society
dc.relation	Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevA.61.013602
dc.relation	Physical Review A, 1999, vol. 61, núm. 1, p. 013602.
dc.relation	http://dx.doi.org/10.1103/PhysRevA.61.013602
dc.rights	(c) The American Physical Society, 1999
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	Matèria condensada
dc.subject	Condensació de Bose-Einstein
dc.subject	Pertorbació (Dinàmica quàntica)
dc.subject	Excitació nuclear
dc.subject	Equacions d'ones
dc.subject	Condensed matter
dc.subject	Bose-Einstein condensation
dc.subject	Perturbation (Quantum dynamics)
dc.subject	Nuclear excitation
dc.title	Temperature-induced resonances and Landau damping of collective modes in Bose-Einstein condensed gases in spherical traps
dc.type	info:eu-repo/semantics/article
dc.type	info:eu-repo/semantics/publishedVersion
dc.description.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.

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