378 citations · 2.5k across the 43 of their papers we have counts for
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One-dimensional pair-hopping and attractive Hubbard models: A comparative study
Mathias van den Bossche, Michel Caffarel
The low-energy physics of the one-dimensional Pair-Hopping (PH) and attractive Hubbard models are expected to be similar. Based on numerical calculations on small chains, several a…
Monte Carlo Calculation of the Spin-Stiffness of the Two-Dimensional Heisenberg Model
Michel Caffarel, Patrick Azaria, Bertrand Delamotte +1
Using a collective-mode Monte Carlo method (the Wolff-Swendsen-Wang algorithm), we compute the spin-stiffness of the two-dimensional classical Heisenberg model. We show that it is…
Exact Diagonalization Approach for the infinite D Hubbard Model
Michel Caffarel, Werner Krauth
We present a powerful method for calculating the thermodynamic properties of the Hubbard model in infinite dimensions, using an exact diagonalization of an Anderson model with a fi…
Superconductivity in the Two-Band Hubbard Model in Infinite D: an Exact Diagonalization Study
Werner Krauth, Michel Caffarel
We apply an exact diagonalization method to the the infinite-D two-band Hubbard model. The method is essentially exact for the calculation of thermodynamic properties for all but t…