# metadata.dc.description[].value
Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Any: 2014, Tutor: Ricardo Mayol

# metadata.dc.description.abstract[].value
In 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.