Conserving many body approach to the fully screened, infinite U Anderson model

Details Conserving many body approach to the fully screened, infinite U Anderson model Conserving many body approach to the fully screened, infinite U Anderson model

2006-01-02

arxiv.org/abs/cond-mat/0601015v1

Phys. Rev. Lett. 97, 106604 (2006).

Physics

Condensed Matter

Strongly Correlated Electrons

Scientific paper

10.1103/PhysRevLett.97.106604

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 cross-over into the Fermi liquid state, with a finite scattering phase shift at zero temperature and a Wilson ratio greater than one. We illustrate our method, computing the temperature dependence of the thermodynamics, resistivity and electron dephasing rate and discuss its future application to non-equilibrium quantum dots and quantum critical mixed valent systems.

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