721 citations · 1.1k across the 5 of their papers we have counts for
5 papers
Metallic and Insulating Phases of Repulsively Interacting Fermions in a 3D Optical Lattice
U. Schneider, L. Hackermuller, S. Will +6
The fermionic Hubbard model plays a fundamental role in the description of strongly correlated materials. Here we report on the realization of this Hamiltonian using a repulsively…
Kondo proximity effect: How does a metal penetrate into a Mott insulator?
R. W. Helmes, T. A. Costi, A. Rosch
We consider a heterostructure of a metal and a paramagnetic Mott insulator using an adaptation of dynamical mean field theory to describe inhomogeneous systems. The metal can penet…
Mott transition of fermionic atoms in a three-dimensional optical trap
R. W. Helmes, T. A. Costi, A. Rosch
We study theoretically the Mott metal-insulator transition for a system of fermionic atoms confined in a three-dimensional optical lattice and a harmonic trap. We describe an inhom…
Transport in Almost Integrable Models: Perturbed Heisenberg Chains
P. Jung, R. W. Helmes, A. Rosch
The heat conductivity kappa(T) of integrable models, like the one-dimensional spin-1/2 nearest-neighbor Heisenberg model, is infinite even at finite temperatures as a consequence o…
Absorption and Emission in quantum dots: Fermi surface effects of Anderson excitons
R. W. Helmes, M. Sindel, L. Borda +1
Recent experiments measuring the emission of exciton recombination in a self-organized single quantum dot (QD) have revealed that novel effects occur when the wetting layer surroun…