165 citations · 415 across the 5 of their papers we have counts for
7 papers
Spin-charge separation in cold Fermi-gases: a real time analysis
C. Kollath, U. Schollwoeck, W. Zwerger
Using the adaptive time-dependent density-matrix renormalization group method for the 1D Hubbard model, the splitting of local perturbations into separate wave packets carrying cha…
An exactly solvable model of the BCS-BEC crossover
J. N. Fuchs, A. Recati, W. Zwerger
We discuss an integrable model of interacting Fermions in one dimension, that allows an exact description of the crossover from a BCS- to a Bose-like superfluid. This model bridges…
Spatial correlations of trapped 1d bosons in an optical lattice
C. Kollath, U. Schollwöck, J. von Delft +1
We investigate a quasi-one dimensional system of trapped cold bosonic atoms in an optical lattice by using the density matrix renormalization group to study the Bose-Hubbard model…
Dissipative spin-boson model and Kondo effect in low dimensional quantum gases
A. Recati, P. O. Fedichev, W. Zwerger +2
We show that ultracold atoms confined in a quasi-1d trap can be used to study the dissipative spin-boson model with {\it tunable} tunneling splitting and strength of dissipation. I…
Mott-Hubbard transition of cold atoms in optical lattices
W. Zwerger
We discuss the superfluid to Mott-insulator transition of cold atoms in optical lattices recently observed by Greiner et.al. (Nature 415, 39 (2002)). The fundamental properties of…
Accuracy of a mechanical single electron shuttle
C. Weiss, W. Zwerger
Motivated by recent experiments, we calculate both the average current and the current fluctuations for a metallic island which oscillates between two symmetric electrodes. Electro…