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Colóquios do IFSC - Ultrafast processes in many-electron systems: A perspective of time-dependent density functional theory on the atto- and femto-second timescale

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Publicado em Fri Dec 19 12:18:11 BRST 2014
Formatos:  MP4 (640 X 480 px)
Responsáveis:  Luis Henrique Carrara
Palestrantes:  E.K.U. Gross

After a general introduction to time-dependent density-functional theory, several recent applications of the theory will be presented: We study the laser-induced ultrafast demagnetization of solid Fe, Co and i; we investigate the dynamics of chemical bonds and address the question, how much time an electron needs to make a transition from one state to another; we study molecular junctions focussing on cases where, after turning on a bias, no steady state is achieved; and finally we combine time-dependent density functional theory with optimal control theory to find laser pulses specifically tailored to enhance a single peak in the harmonic spectrum of atoms.