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Berlin 2014 – scientific programme

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A: Fachverband Atomphysik

A 19: Photoionization

A 19.7: Talk

Tuesday, March 18, 2014, 15:45–16:00, BEBEL E42

Optically Excited Graphene - Non - Equilibrium Many Body Theory — •Regine Frank — Institute for Theoretical Physics, Eberhard-Karls University Tübingen, Germany Center for Light-Matter-Interaction, Sensors and Analytics (LISA+) and Center for Complex Quantum Phenomena (CQ)

A generalized non-equilibrium dynamical mean field theory (DMFT) for graphene is presented. The non-equilibrium DMFT derives properties such as electronic density of states (LDOS) and occupation numbers of the optically driven system. It fully characterizes the system in it's time dependent state. It is demonstrated, how such a setup may be employed in order to realize all-optical switching processes. Results for relevant time scales in setups as well as wave-mixing influences are presented.

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