We describe a new approach to the ground state antiferromagnetic phase of the infinite-dimensional Hubbard model. The theory recovers correctly both the strong coupling Heisenberg limit at 1/2 filling and the t-J limit in the one-hole sector, appears applicable over a wide U range, and is readily extended to finite dimensions
We solve analytically the N×N square lattice Hubbard model for even N at half-filling and weak coupl...
An approximate partition functional is derived for the infinite-dimensional Hubbard model. This func...
[[abstract]]The exact phase diagrams of the one-dimensional Hubbard model, both attractive and repul...
A novel and physically transparent approach to the finite-temperature Hubbard model at half filling ...
We have investigated the antiferromagnetic phase of two-dimensional (2D), three-dimensional (3D), an...
We study the antiferromagnetic phase of three-dimensional Hubbard model with nearest neighbors hoppi...
5 págs.; 5 figs.We study the strong-coupling regime of the t-t′ Hubbard model, filled up to the leve...
As a prototype model of antiferromagnetism, we propose a repulsive Hubbard Hamiltonian defined on a ...
[[abstract]]The exact solution of the one-dimensional Hubbard model, both attractive and repulsive, ...
[[abstract]]The exact phase diagram and the ground-state properties of the one-dimensional Hubbard m...
We introduce a local formalism to deal with the Hubbard model on an N ×N square lattice (for even N)...
We solve analytically the N £ N square lattice Hubbard model for even N at half-filling and weak cou...
We present and study the infinite-dimensional limit of the Hubbard model on a class of non-nested bi...
The extended Hubbard model with nearest neighbour inter-site correlations has been studied by mappin...
10 pages, 9 figuresWe introduce a spin-symmetry-broken extension of the connected determinant algori...
We solve analytically the N×N square lattice Hubbard model for even N at half-filling and weak coupl...
An approximate partition functional is derived for the infinite-dimensional Hubbard model. This func...
[[abstract]]The exact phase diagrams of the one-dimensional Hubbard model, both attractive and repul...
A novel and physically transparent approach to the finite-temperature Hubbard model at half filling ...
We have investigated the antiferromagnetic phase of two-dimensional (2D), three-dimensional (3D), an...
We study the antiferromagnetic phase of three-dimensional Hubbard model with nearest neighbors hoppi...
5 págs.; 5 figs.We study the strong-coupling regime of the t-t′ Hubbard model, filled up to the leve...
As a prototype model of antiferromagnetism, we propose a repulsive Hubbard Hamiltonian defined on a ...
[[abstract]]The exact solution of the one-dimensional Hubbard model, both attractive and repulsive, ...
[[abstract]]The exact phase diagram and the ground-state properties of the one-dimensional Hubbard m...
We introduce a local formalism to deal with the Hubbard model on an N ×N square lattice (for even N)...
We solve analytically the N £ N square lattice Hubbard model for even N at half-filling and weak cou...
We present and study the infinite-dimensional limit of the Hubbard model on a class of non-nested bi...
The extended Hubbard model with nearest neighbour inter-site correlations has been studied by mappin...
10 pages, 9 figuresWe introduce a spin-symmetry-broken extension of the connected determinant algori...
We solve analytically the N×N square lattice Hubbard model for even N at half-filling and weak coupl...
An approximate partition functional is derived for the infinite-dimensional Hubbard model. This func...
[[abstract]]The exact phase diagrams of the one-dimensional Hubbard model, both attractive and repul...
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