Correlated band structure of electron-doped cuprate materials (2005)
Dahnken, C., Potthoff, M., Arrigoni, E., Hanke, W.
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-energy-functional...
Dahnken, C., Aichhorn, M., Hanke, W., Arrigoni, E., Potthoff, M.
Based on the self-energy-functional approach proposed recently [M. Potthoff, Eur. Phys. J. B 32, 429 (2003)], we present an extension of the cluster-perturbation theory to systems with spontaneously...
Variational cluster approach to correlated electron systems in low dimensions (2003)
Potthoff, M., Aichhorn, M., Dahnken, C.
A self-energy-functional approach is applied to construct cluster approximations for correlated lattice models. It turns out that the cluster-perturbation theory (Senechal et al, PRL 84, 522 (2000))...
Spectral Properties of High-T$_c$ Cuprates via a Cluster-Perturbation Approach (2001)
Dahnken, C., Arrigoni, E., Hanke, W.
Angular-resolved photoemission data on half-filled doped cuprate materials are compared with an exact-diagonalization analysis of the three-band Hubbard model, which is extended to the infinite...
Theory of ARPES intensities from the CuO$_2$ plane (2001)
We present a theory for the photon energy and polarization dependence of ARPES intensities from the CuO$_2$ plane in the framework of strong correlation models. We show that for electric field vector...