2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/115737We present an approach to numerically solving the time-dependent Schroedinger equation and other parabolic equations by the split-step technique with fast Fourier transform, which suppresses the backreflection of waves from the grid boundaries with any specified accuracy. Most importantly, all known methods work well only for a narrow region of incident waves spectrum, and the proposed method provides absorption of any wave whose length is large enough in comparison with the size of absorption region.4 pages, 3 figuresAtomic PhysicsOpticstext