Bright and dark solitons in a Bose-Einstein condensate

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dc.contributor.advisorJuliá-Díaz, Bruno
dc.contributor.authorMalo Roset, Laura
dc.date.accessioned2018-09-13T16:01:21Z
dc.date.available2018-09-13T16:01:21Z
dc.date.issued2018-01
dc.descriptionTreballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2018, Tutor: Bruno Julià Díazca
dc.description.abstractWe study dark and bright solitons in confined Bose-Einstein condensates of ultracold gases with repulsive and attractive atom-atom interaction. First, we compute analytic properties of the solitons in absence of the trap. Then, we consider the problem of the collision of a bright soliton with a barrier. This is studied by solving numerically the 1D Gross-Pitaevskii equation in the presence of a harmonic oscillator potential and a Rosen-Morse barrier. We discuss in detail the conditions for having a transmission coefficient of T = 0:5. Then, we study the evolution of the energies during this process and the nature of the part transmittedca
dc.format.extent5 p.
dc.format.mimetypeapplication/pdf
dc.identifier.urihttps://hdl.handle.net/2445/124538
dc.language.isoengca
dc.rightscc-by-nc-nd (c) Malo, 2018
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessca
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.sourceTreballs Finals de Grau (TFG) - Física
dc.subject.classificationSolitonscat
dc.subject.classificationCondensació de Bose-Einsteincat
dc.subject.classificationTreballs de fi de graucat
dc.subject.otherSolitonseng
dc.subject.otherBose-Einstein condensationeng
dc.subject.otherBachelor's theseseng
dc.titleBright and dark solitons in a Bose-Einstein condensateeng
dc.typeinfo:eu-repo/semantics/bachelorThesisca

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