2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/218518A fast rotating Bose-Einstein condensate confined in a quadratic-plus-quartic potential is found to dynamically generate a "giant vortex" that absorbs all phase singularities into a central low density hole, thereby sustaining a quasi-one-dimensional circular superflow at a supersonic speed.4 pages, 4 figures, revtex4Mesoscale and Nanoscale Physicstext