29 citations · 52 across the 4 of their papers we have counts for
4 papers
Landau levels in a topological insulator
P. Schwab, M. Dzierzawa
Two recent experiments successfully observed Landau levels in the tunneling spectra of the topological insulator Bi2Se3. To mimic the influence of a scanning tunneling microscope t…
Density functional theory for a model quantum dot: Beyond the local-density approximation
S. Schenk, P. Schwab, M. Dzierzawa +1
We study both static and transport properties of model quantum dots, employing density functional theory as well as (numerically) exact methods. For the lattice model under conside…
Variationnal study of ferromagnetism in the t1-t2 Hubbard chain
S. Daul, P. Pieri, M. Dzierzawa +2
A one-dimensional Hubbard model with nearest and (negative) next-nearest neighbour hopping is studied variationally. This allows to exclude saturated ferromagnetism for .…
Low density ferromagnetism in the Hubbard model
P. Pieri, S. Daul, D. Baeriswyl +2
A single-band Hubbard model with nearest and next-nearest neighbour hopping is studied for , 2, 3, using both analytical and numerical techniques. In one dimension, saturated…