Dresden 2011 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 44: Poster Session Correlated Electrons

TT 44.64: Poster

Donnerstag, 17. März 2011, 10:00–13:00, P1

Time-dependent exact diagonalization for the simulation of RIXS in 1-D systems — •Stefanos Kourtis, Maria Daghofer, and Jeroen van den Brink — IFW Dresden, P.O. Box 270116, 01171 Dresden, Germany

We present a method for numerical simulation of resonant inelastic X-ray scattering (RIXS). Using time-dependent exact diagonalization, we take explicitly into account the finite lifetime of the core-hole present in the intermediate state of the process and study its effect on observables. We report preliminary results for the spin and charge excitations of a one-dimensional chain at quarter filling and compare them to various approximations used. In particular, we study to what extent the finite lifetime affects direct RIXS and possibly leads to differences between the expected outcome and the charge response function.