2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/50214We construct an effective action describing brane-antibrane system containing N D-branes and N \bar{D}-branes. BPS equations for remaining D-branes after tachyon condensation are derived and their properties are investigated. The value of the D-brane tension and the number of brane bound states are discussed.12 pages, references addedHigh Energy Physics - Theorytext