Showing 2007Show all
3 papers · 1 filter
cond-mat.str-el2007
Néel and Valence-Bond Crystal phases of the Two-Dimensional Heisenberg Model on the Checkerboard Lattice
S. Moukouri
I use an improved version of the two-step density matrix renormalization group method to study ground-state properties of the 2D Heisenberg model on the checkerboard lattice. In th…
cond-mat.str-el2007
Antiferromagnetism and Superconductivity in a model of Quasi 1D Organic Conductors
S. Moukouri
I apply a two-step renormalization group method to the study of the competition between antiferromagnetism (AFM) and superconductivity in an anisotropic 2D Hubbard model. I show th…
cond-mat.str-el2007
A Renormalization group approach for highly anisotropic 2D Fermion systems: application to coupled Hubbard chains
S. Moukouri
I apply a two-step density-matrix renormalization group method to the anisotropic two-dimensional Hubbard model. As a prelude to this study, I compare the numerical results to the…