title: Conserving many body approach to the infinite-U Anderson model.
abstract: Using a Luttinger-Ward scheme for interacting gauge particles, we present a conserving many body treatment of a family of fully screened infinite-U Anderson models that has a smooth crossover into the Fermi-liquid state, with a finite scattering phase shift at zero temperature and a Wilson ratio greater than 1. We illustrate our method, computing the temperature dependence of the thermodynamics, resistivity, and electron dephasing rate and discuss its future application to nonequilibrium quantum dots and quantum critical mixed valent systems.
authors.affiliation: Center for Materials Theory, Serin Physics Laboratory, Rutgers University, Piscataway, New Jersey 08854-8019, USA.
authors.forename: Eran
authors.initials: E
authors.lastname: Lebanon
authors.forename: Jerome
authors.initials: J
authors.lastname: Rech
authors.forename: P
authors.initials: P
authors.lastname: Coleman
authors.forename: Olivier
authors.initials: O
authors.lastname: Parcollet