2001/04/11 by J. Lages, José Lages, Dima L. Shepelyansky +1
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #cond-mat
paper · pdf · doi:10.1103/physrevb.64.094502
revtex, 7 pages, 8 figures
arxiv created 2001/04/11 · openalex publication_date 2001/07/31 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The Cooper problem is studied numerically for the Anderson model with disorder in two dimensions. It is shown that the attractive Hubbard interaction creates a phase of biparticle localized states in the regime where noninteracting states are delocalized. This phase cannot be obtained in the mean-field approximation and the pair coupling energy is strongly enhanced in this regime. The effects of magnetic field are studied and it is shown that under certain conditions they lead to delocalization.