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Article Dans Une Revue Physical Review B: Condensed Matter and Materials Physics (1998-2015) Année : 2000

Ground state properties of the 2D disordered Hubbard model

Résumé

We study the ground state of the two-dimensional (2D) disordered Hubbard model by means of the projector quantum Monte Carlo (PQMC) method. This approach allows us to investigate the ground state properties of this model for lattice sizes up to $10 \times 10$, at quarter filling, for a broad range of interaction and disorder strengths. Our results show that the ground state of this system of spin-1/2 fermions remains localised in the presence of the short-ranged Hubbard interaction.

Dates et versions

hal-00119778 , version 1 (12-12-2006)

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Gaetan Caldara, Bhargavi Srinivasan, Dima Shepelyansky. Ground state properties of the 2D disordered Hubbard model. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2000, 62, pp.10680-10686. ⟨hal-00119778⟩
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