39 citations · 104 across the 4 of their papers we have counts for
4 papers
Exact many-electron ground states on diamond and triangle Hubbard chains
Zsolt Gulacsi, Arno Kampf, Dieter Vollhardt
We construct exact ground states of interacting electrons on triangle and diamond Hubbard chains. The construction requires (i) a rewriting of the Hamiltonian into positive semidef…
Spin-charge separation in Aharonov-Bohm rings of interacting electrons
K. Hallberg, A. A. Aligia, A. P. Kampf +1
We investigate the properties of strongly correlated electronic models on a flux-threaded ring connected to semi-infinite free-electron leads. The interference pattern of such an A…
Quantum Interference Phenomena Between Impurity States in d-wave Superconductors
U. Michelucci, F. Venturini, A. P. Kampf
We investigate the mutual influence of impurities in two-dimensional d-wave superconductors involving self-consistent solutions of the Bogoliubov-de Gennes equations. The local ord…
Lattice anisotropy as microscopic origin of static stripes in cuprates
B. Normand, A. P. Kampf
Structural distortions in cuprate materials offer a microscopic origin for anisotropies in electron transport in the basal plane. Using a real-space Hartree-Fock approach, we consi…