Add to ORKGIn this article, we discuss the stability of the Nagaoka state with an infinite number of holes in the infinite-U Hubbard model. We shall rigorously show that the Nagaoka state is stable if the total number of holes Nh ≈ Nα ∧ with O≤α<2/ (d+2) as the number of lattice sites N∧ tends to infinity. Our theorem improves greatly the previous results obtained by Barbieri et al. [Phys. Rev. B 41 (1990) 11697] and by Tian [Phys. Rev. B 44 (1991) 4444]. © 1993.link_to_subscribed_fulltex
Journal ArticleWe extend Nagaoka's study of the ferromagnetism of nearly half-filled bands in the in...
We prove that the motion of a single hole induces the nearest-neighbor resonating-valence-bond groun...
We identify a "kF instability" of the Nagaoka ferromagnetic state of the U = ∞ Hubbard model. We sho...
In this article, we discuss the stability of the Nagaoka state with an infinite number of holes in t...
The infinite-U Hubbard model with two holes on a two-dimensional square lattice is explicitly studie...
Within the t – U model, the so – called Hubbard model, a lattice of electrons is not completely ferr...
[[abstract]]The finite Hubbard lattice with strong repulsion away from half-filling in a strong magn...
The diamagnetic susceptibility of the infinity-U Hubbard model is investigated in one and two dimens...
We analyze the possible occurrence of ferromagnetism in the Hubbard model, by means of an exact diag...
We study the infinite-U Hubbard model on ladders of two, four, and six legs with nearest- (t) and ne...
In the present paper, we investigate the existence of ferromagnetism in a two-band Hubbard model, by...
The infinite U Hubbard model is investigated to envisage the derivation of effective action for spin...
We present different numerical calculations based on variational quantum Monte Carlo simulations sup...
Following Nagaoka, the ground state of the large-U nearly half-filled Hubbard model is ‘‘ferromagnet...
For a class of generalized one dimensional Hubbard models, we study the stability region for the su...
Journal ArticleWe extend Nagaoka's study of the ferromagnetism of nearly half-filled bands in the in...
We prove that the motion of a single hole induces the nearest-neighbor resonating-valence-bond groun...
We identify a "kF instability" of the Nagaoka ferromagnetic state of the U = ∞ Hubbard model. We sho...
In this article, we discuss the stability of the Nagaoka state with an infinite number of holes in t...
The infinite-U Hubbard model with two holes on a two-dimensional square lattice is explicitly studie...
Within the t – U model, the so – called Hubbard model, a lattice of electrons is not completely ferr...
[[abstract]]The finite Hubbard lattice with strong repulsion away from half-filling in a strong magn...
The diamagnetic susceptibility of the infinity-U Hubbard model is investigated in one and two dimens...
We analyze the possible occurrence of ferromagnetism in the Hubbard model, by means of an exact diag...
We study the infinite-U Hubbard model on ladders of two, four, and six legs with nearest- (t) and ne...
In the present paper, we investigate the existence of ferromagnetism in a two-band Hubbard model, by...
The infinite U Hubbard model is investigated to envisage the derivation of effective action for spin...
We present different numerical calculations based on variational quantum Monte Carlo simulations sup...
Following Nagaoka, the ground state of the large-U nearly half-filled Hubbard model is ‘‘ferromagnet...
For a class of generalized one dimensional Hubbard models, we study the stability region for the su...
Journal ArticleWe extend Nagaoka's study of the ferromagnetism of nearly half-filled bands in the in...
We prove that the motion of a single hole induces the nearest-neighbor resonating-valence-bond groun...
We identify a "kF instability" of the Nagaoka ferromagnetic state of the U = ∞ Hubbard model. We sho...