2013/02/28 by K. Makuch, Karol Makuch, J. Skolimowski +6 · 3 citations
Physics and Astronomy · #Cold Atom Physics and Bose-Einstein Condensates #Condensed matter physics #Fermion #Hubbard model #Lattice (music) #Optical lattice #Physics #Physics of Superconductivity and Magnetism #Polarization (electrochemistry) #Quantum many-body systems #Quantum mechanics #Spin (aerodynamics) #Superconductivity #Thermodynamics #cond-mat.dis-nn #cond-mat.quant-gas #cond-mat.str-el
paper · pdf · doi:10.1088/1367-2630/15/4/045031
published in New Journal of Physics 15(4), 045031 (IOP Publishing) · 20 pages, 11 figures, published version
openalex publication_date 2013/04/30 · arxiv created 2013/05/07 · arxiv updated 2015/06/15 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
Motivated by the rapidly growing possibilities for experiments with ultracold atoms in optical lattices, we investigate the thermodynamic properties of correlated lattice fermions in the presence of an external spin-dependent random potential. The corresponding model, a Hubbard model with spin-dependent local random potentials, is solved within dynamical mean-field theory. This allows us to present a comprehensive picture of the thermodynamic properties of this system. In particular, we show that for a fixed total number of fermions spin-dependent disorder induces a magnetic polarization. The magnetic response of the polarized system differs from that of a system with conventional disorder.