2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/17998We study the dynamics of vortex lattice formation of a rotating trapped Bose-Einstein condensate by numerically solving the two-dimensional Gross-Pitaevskii equation, and find that the condensate undergoes elliptic deformation, followed by unstable surface-mode excitations before forming a quantized vortex lattice. The dependence of the number of vortices on the rotation frequency is obtained.Latex, JLTP style, 6 pages, 5 figures, prepared for Proccedings of International Symposium on Quantum Fluids and Solids (QFS 2001)Condensed Mattertext