Mayol Sánchez, RicardoEsteban Puyuelo, Raquel2014-11-182014-11-182014-06https://hdl.handle.net/2445/59764Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Any: 2014, Tutor: Ricardo MayolIn this work the validity of an analytic approximation expression [1] for the critical number of atoms that a Bose-Einstein Condensate can hold before collapsing when the interaction between them is attractive is checked. In order to do this the system is treated in a more precise way by numerically solving the Gross-Pitaevskii equation. One finds that the variational approach underestimates the number of atoms that can fit in a Bose-Einstein Condensate before it collapses.5 p.application/pdfengcc-by-nc-nd (c) Esteban Puyuelo, 2014http://creativecommons.org/licenses/by-nc-nd/3.0/es/Condensació de Bose-EinsteinEstabilitatTreballs de fi de grauBose-Einstein condensationStabilityBachelor's thesesinfo:eu-repo/semantics/bachelorThesisinfo:eu-repo/semantics/openAccess