Díez Alcántara, EduardoGómez-Alcalá, R.Domínguez-Adame Acosta, FranciscoSanchez, A.Berman, G. P.2023-06-202023-06-201998-07-150163-182910.1103/PhysRevB.58.1146https://hdl.handle.net/20.500.14352/59365© 1998 The American Physical Society. E.D. thanks Antti-Pekka Jauho for illuminating conversations and his warm hospitality at Mikroelektronik Centret where this paper was written in part. Work at Leganés and Madrid was supported by CICYT (Spain) under Projects Nos. MAT95-0325 and PB96-0199. E.D. gratefully acknowledges partial support from Fundación Universidad Carlos III de Madrid. G.P.B. gratefully acknowledges partial support by the Defense Advanced Research Projects Agency.We investigate the dynamics of a semiconductor superlattice driven by an ac electric field by solving numerically the one-dimensional time-dependent Schrodinger equation including interface roughness effects. Rabi oscillations between minibands are clearly identified under resonant conditions, but we show that their lifetime is controlled by a characteristic time that depends on the superlattice deviation from perfection and is independent of the electric field. Experiments for the observation of the predicted effects are proposed. [[S0163-1829(98)01327-7].engjournal articlehttp://dx.doi.org/10.1103/PhysRevB.58.1146http://journals.aps.orgopen access538.9PhysicsCondensed MatterFísica de materiales