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Nonequilibrium properties of Mott-Hubbard insulators

Peter Prelovsek (University of Ljubljana, Slovenia)

05.07.2013 at 10:15 

 

In the talk I will discuss some aspects of the behaviour of Mott-Hubbard insulators in nonequilibrium situations. A model of one-dimensional interacting fermions in the in-sulating regime shows that response is anomalous for the integrable case as opposed to generic models. The study of the dielectric breakdown within the polarized Hubbard model gives an exact dependence of the threshold field on the excitation gap. Finally, the recombination of photoinduced charges in Mott-Hubbard insulators will be evaluated and theory applied to the interpretation of ultrafast pump-probe spectroscopy experiments on undoped cuprates

 

A348 - Theresienstr. 37