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Light-induced dynamical processes in finite and extended systems from TDDFT

AutorRubio, Angel; Haber, Fritz
Fecha de publicación2013
CitaciónModeling Single-Molecule Junctions: Novel Spectroscopies and Control (2013)
ResumenIn this talk we will review the recent advances within density-functional and many-body based schemes to describe spectroscopic properties of complex systems with special emphasis to modelling time and spatially resolved electron spectroscopies (including transient pump-probe techniques). Pros and cons of present functionals will be highlighted and provide insight in how to overcome those limitations by merging concepts from many-body perturbation theory and time-dependent density functional theory. We will discuss some of the theoretical approaches developed in the group (and under development) for the characterisation of matter out of equilibrium, the control material processes at the electronic level and tailor material properties, and master energy and information on the nanoscale to propose new devices with capabilities. We will focus on examples linked to the efficient conversion of light into electricity or chemical fuels ("artificial photosynthesis") and the design on new nanostructured based optoelectronic devices based on inorganic nanotubes, among others. The goal of the group activities in the long-run is to provide a detailed, efficient, and at the same time accurate microscopic approach for the ab-initio description and control of the dynamics of decoherence and dissipation in quantum many-body systems. With the help of quantum optimal control (QOC) theory and the mastery over spectroscopy we could direct the movement of electrons, selectively trigger chemical reactions and processes, and create new materials.
DescripciónTrabajo presentado al "Modeling Single-Molecule Junctions: Novel Spectroscopies and Control", celebrado en Berlin (Alemania) del 14 al 16 de Octubre de 2013.
Versión del editorhttp://th.fhi-berlin.mpg.de/th/msmj2013/index.php?n=Meeting.Home
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