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cond-mat.str-el2006★ 11 cited
Spectral functions for strongly correlated 5f-electrons
F. Pollmann, G. Zwicknagl
We calculate the spectral functions of model systems describing 5f-compounds adopting Cluster Perturbation Theory. The method allows for an accurate treatment of the short-range co…
cond-mat.str-el2006★ 2 cited
Charge degrees in the quarter-filled checkerboard lattice
F. Pollmann, J. J. Betouras, E. Runge +1
For a systematic study of charge degrees of freedom in lattices with geometric frustration, we consider spinless fermions on the checkerboard lattice with nearest-neighbor hopping…