title: Principle of maximum entanglement entropy and local physics of strongly correlated materials.
abstract: We argue that, because of quantum entanglement, the local physics of strongly correlated materials at zero temperature is described in a very good approximation by a simple generalized Gibbs distribution, which depends on a relatively small number of local quantum thermodynamical potentials. We demonstrate that our statement is exact in certain limits and present numerical calculations of the iron compounds FeSe and FeTe and of the elemental cerium by employing the Gutzwiller approximation that strongly support our theory in general.
authors.affiliation: Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey 08856-8019, USA.
authors.forename: Nicola
authors.initials: N
authors.lastname: Lanatà
authors.affiliation: Department of Physics, University of Gothenburg, SE-412 96 Gothenburg, Sweden and Department of Physics, University of Fribourg, CH-1700 Fribourg, Switzerland.
authors.forename: Hugo U R
authors.initials: HU
authors.lastname: Strand
authors.affiliation: Ames Laboratory-U.S. DOE and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA.
authors.forename: Yongxin
authors.initials: Y
authors.lastname: Yao
authors.affiliation: Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey 08856-8019, USA.
authors.forename: Gabriel
authors.initials: G
authors.lastname: Kotliar