2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/55187We compute the vacuum one loop amplitude for two D-strings at an angle compactified on $T^2$ as a function of the transverse separation and the winding numbers. We show that in certain cases the amplitude is independent on whether the D-strings are compactified or not.5 pages, LaTex, 2 eps figuresHigh Energy Physics - Theorytext