2000/04/06 by Gaetan Caldara, Gaëtan Caldara, Bhargavi Srinivasan +2 · 7 citations
Mathematics · Physics and Astronomy · #Condensed matter physics #Fermion #Ground state #Hubbard model #Lattice (music) #Mathematics #Monte Carlo method #Optics #Physics #Physics of Superconductivity and Magnetism #Projector #Quantum Monte Carlo #Quantum and electron transport phenomena #Quantum many-body systems #Quantum mechanics #Statistical physics #Statistics #Superconductivity #cond-mat.dis-nn #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.62.10680
published in Physical review. B, Condensed matter 62(16), 10680-10686 (American Physical Society) · 7 pages, 9 figures
arxiv created 2000/04/06 · openalex publication_date 2000/10/15 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We study the ground state of the two-dimensional disordered Hubbard model by means of the projector quantum Monte Carlo method. This approach allows us to investigate the ground-state properties of this model for lattice sizes up to 10\ifmmode×\else\texttimes\fi10, 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 localized in the presence of the short-ranged Hubbard interaction.