74 citations · 138 across the 6 of their papers we have counts for
6 papers
FFLO- and Néel States in finite-size Systems
T. Gottwald, P. G. J. van Dongen
The general structure of the -wave fermionic superfluid pairing order parameter is discussed for systems in thermal equilibrium. We demonstrate that for finite-size systems with…
Orbital-selective Mott Transitions in a Doped Two-band Hubbard Model
Eberhard Jakobi, Nils Blümer, Peter van Dongen
We extend previous studies on orbital-selective Mott transitions in the paramagnetic state of the half-filled degenerate two-band Hubbard model to the general doped case, using a h…
Antiferromagnetic Order of Repulsively Interacting Fermions on Optical lattices
Tobias Gottwald, Peter van Dongen
The Néel state in fermionic mixtures of two pseudospin species in an optical lattice is analyzed at low temperatures. Experimentally it remains a challenge to demonstrate antiferro…
Orbital-selective Mott transitions in the anisotropic two-band Hubbard model at finite temperatures
C. Knecht, N. Blümer, P. G. J. van Dongen
The anisotropic degenerate two-orbital Hubbard model is studied within dynamical mean-field theory at low temperatures. High-precision calculations on the basis of a refined quantu…
Green functions for nearest- and next-nearest-neighbor hopping on the Bethe lattice
M. Kollar, M. Eckstein, K. Byczuk +8
We calculate the local Green function for a quantum-mechanical particle with hopping between nearest and next-nearest neighbors on the Bethe lattice, where the on-site energies may…
Phase diagram of the one-dimensional, two-channel Kondo lattice model
T. Schauerte, D. L. Cox, R. M. Noack +2
Employing the density matrix renormalization group method and strong-coupling perturbation theory, we study the phase diagram of the SU(2)xSU(2) Kondo lattice model in one dimensio…