2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/21783We study the properties of elongated Bose-Einstein condensates. First, we show that the dimensions of the condensate after expansion differs from the 3D Thomas-Fermi regime. We also study the coherence length of such elongated condensates.proceeding of Quantum Gases in Low Dimension, Les Houches 2003, 8 pages, 5 figuresCondensed Mattertext