Перегляд за автором "Potthoff, M."

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  • Correlated band structure of electron-doped cuprate materials 
    Dahnken, C.; Potthoff, M.; Arrigoni, E.; Hanke, W. (Физика низких температур, 2006)
    We present a numerical study of the doping dependence of the spectral function of the n-type cuprates. Using a variational cluster-perturbation theory approach based upon the self-energyfunctional theory, the spectral ...
  • Non-perturbative construction of the Luttinger-Ward functional 
    Potthoff, M. (Condensed Matter Physics, 2006)
    For a system of correlated electrons, the Luttinger-Ward functional provides a link between static thermodynamic quantities on the one hand and single-particle excitations on the other. The functional is useful in deriving ...