2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/27900The theoretical analysis of the ultrafast energy relaxation and transport phenomena in semiconductor superlattices is reviewed. In particular, we discuss the two equivalent quantum-mechanical pictures of Bloch oscillations and Wannier-Stark localization. A review of simulated experiments and their comparison with available experimental investigations is also provided.To appear in "Theory of Transport Properties of Semiconductor Nanostructures, edited by E. Schoell (Chapman&Hall, London, 1997) (Some of the figures are not available in electronic form)Materials Sciencetext