41 citations · 86 across the 7 of their papers we have counts for
7 papers
Superconductivity in striped Hubbard Clusters
Werner Fettes, Thomas Husslein, Ingo Morgenstern
The CuO-planes of high-T_c superconductors were found to consist of geometric stripes with alternating superconducting and antiferromagnetic areas. Here we will investigate the rep…
Critical Current in the High-T_c Glass model
Ingo Morgenstern, Werner Fettes, Thomas Husslein
The high-T_c glass model can be combined with the repulsive tt'--Hubbard model as microscopic description of the striped domains found in the high-T_c materials. In this picture th…
Glass Model, Hubbard Model and High-Temperature Superconductivity
Ingo Morgenstern, Werner Fettes, Thomas Husslein +2
In this paper we revisit the glass model describing the macroscopic behavior of the High-Temperature superconductors. We link the glass model at the microscopic level to the stripe…
Evidence for d-wave superconductivity in the repulsive Hubbard-model
W. Fettes, I. Morgenstern
We perform numerical simulations of the Hubbard model using the projector Quantum Monte Carlo method. A novel approach for finite size scaling is discussed. We obtain evidence in f…
Parallelization of the exact diagonalization of the t-t'-Hubbard model
W. Fettes, I. Morgenstern, T. Husslein
We present a new parallel algorithm for the exact diagonalization of the -Hubbard model with the Lanczos-method. By invoking a new scheme of labeling the states we were able…
Comparison of Calculations for the Hubbard model obtained with Quantum-Monte-Carlo, exact and stochastic Diagonalization
Thomas Husslein, Werner Fettes, Ingo Morgenstern
In this paper we compare numerical results for the ground state of the Hubbard model obtained by Quantum-Monte-Carlo simulations with results from exact and stochastic diagonalizat…
Quantum Monte Carlo Evidence for d-wave Pairing in the 2D Hubbard Model at a van Hove Singularity
T. Husslein, I. Morgenstern, D. M. Newns +3
We implement a Quantum Monte Carlo calculation for a repulsive Hubbard model with nearest and next-nearest neighbor hopping interactions on clusters up to 12x12. A parameter region…