19 citations · 55 across the 5 of their papers we have counts for
5 papers
Multigrid Hirsch-Fye quantum Monte Carlo method for dynamical mean-field theory
N. Blümer
We present a new algorithm which allows for direct numerically exact solutions within dynamical mean-field theory (DMFT). It is based on the established Hirsch-Fye quantum Monte Ca…
Orbital-selective Mott transitions in the 2-band J_z-model: a high-precision quantum Monte Carlo study
P. G. J. van Dongen, C. Knecht, N. Blümer
Using high-precision quantum Monte Carlo (QMC) simulations within the framework of dynamical mean field theory (DMFT), we show that the anisotropic degenerate two-orbital Hubbard m…
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…
Superconductivity of SrTiO_{3-δ}
M. Jourdan, N. Blümer, H. Adrian
Superconducting SrTiO_{3-δ} was obtained by annealing single crystalline SrTiO_3 samples in ultra high vacuum. An analysis of the V(I) characteristics revealed very small critical…
Metallic Ferromagnetism - an Electronic Correlation Phenomenon
D. Vollhardt, N. Blümer, K. Held +1
New insights into the microscopic origin of itinerant ferromagnetism were recently gained from investigations of electronic lattice models within dynamical mean-field theory (DMFT)…