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dc.contributor.advisorMoreno Cardoner, Maria-
dc.contributor.authorToribio Candel, Linda-
dc.descriptionTreballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2021, Tutora: Maria Moreno Cardonerca
dc.description.abstractWe study the superfluid-Mott insulator quantum phase transition for ultracold atoms described by the Bose-Hubbard model. We first analyse the limiting regimes where only kinetic or interaction energies are present, corresponding to a superfluid (delocalized) or a Mott-insulator (localized) state, respectively. Using a variational wave-function, where the different sites are decorrelated, and imaginay time propagation we then interpolate between these two cases, and find the full phase diagram of the model by analysing the superfluid order parameter, and the average and variance of density of particles per siteca
dc.format.extent7 p.-
dc.rightscc-by-nc-nd (c) Toribio, 2021-
dc.sourceTreballs Finals de Grau (TFG) - Física-
dc.subject.classificationTransició de fase quànticacat
dc.subject.classificationAïllant de Mottcat
dc.subject.classificationTreballs de fi de graucat
dc.subject.otherQuantum phase transitioneng
dc.subject.otherMott insulatoreng
dc.subject.otherBachelor's theseseng
dc.titleMott Insulator-Superfluid transition with cold atoms trapped in optical latticeeng
Appears in Collections:Treballs Finals de Grau (TFG) - Física

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