2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/20057We present a generalization of the continuum theory of vortex matter for non-uniform superfluid density. This theory explains the striking regularity of vortex lattices observed in Bose-Einstein condensates, and predicts the frequencies of long-wavelength lattice excitations.4 pagesCondensed Mattertext