Parts | Days | Selection | Search | Downloads | Help

TT: Fachverband Tiefe Temperaturen

TT 24: Correlated Electrons: (General) Theory 2

TT 24.8: Talk

Wednesday, March 25, 2009, 11:45–12:00, HSZ 301

Influence of orbital degeneracy on the two particle spectral function — •Berlinson Dominikus Napitu^1,2 and Jamal Berakdar² — ¹Max-Planck-Institut für Mikrostrukturphysik, Halle — ²Institut für Physik- Heinrich-Damerow-Strasse 4 Halle (Saale)

We studied the evolution of two particle spectral function of the orbitally degenerate Hubbard model with the same and different bandwidth. The calculation of single particle spectra is based on dynamical mean field theory (DMFT) together with quantum monte carlo (QMC) while for two particle spectra the ladder approximation is implemented. The influence of temperature is also considered.