2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/227774We analyse the orbital motion of a light anti D6-brane in the presence of a stack of heavy, distant D6-branes in ten dimensions, taking account of possible time-variations in the background moduli fields. The Coulomb-like central potential arising through brane-antibrane interactions is then modified to include time-dependent prefactors, which generally preclude the existence of stable elliptical orbits.13 pages, Latex, 3 eps figuresHigh Energy Physics - Theorytext