A Levinson theorem for scattering from a Bose-Einstein condensate

dc.creatorBrand, J.
dc.creatorHaering, I.
dc.creatorRost, J. -M.
dc.date2003-04-24
dc.date.accessioned2026-07-07T02:50:57Z
dc.date.available2026-07-07T02:50:57Z
dc.descriptionA relation between the number of bound collective excitations of an atomic Bose-Einstein condensate and the phase shift of elastically scattered atoms is derived. Within the Bogoliubov model of a weakly interacting Bose gas this relation is exact and generalises Levinson's theorem. Specific features of the Bogoliubov model such as complex-energy and continuum bound states are discussed and a numerical example is given.
dc.description4 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0304546
dc.identifierhttp://arxiv.org/abs/cond-mat/0304546
dc.identifierPhys. Rev. Lett. 91, 070403 (2003)
dc.identifierdoi:10.1103/PhysRevLett.91.070403
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/21285
dc.subjectSoft Condensed Matter
dc.titleA Levinson theorem for scattering from a Bose-Einstein condensate
dc.typetext

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