Conserving many body approach to the fully screened, 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 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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Cited by in corpus (9)

• Nonlocal Kondo effect and quantum critical phase in heavy fermion metals
• Quantum phase transition in a two-dimensional Kondo-Heisenberg model: a Schwinger-boson large-N approach
• A unified theory of ferromagnetic quantum phase transitions in heavy fermion metals
• Emergent moments in a Hund's impurity
• Fermi liquid identities for the Infinite U Anderson Model
• Schwinger boson approach for the dynamical mean-field theory of the Kondo lattice
• Interplay of charge and spin fluctuations in a Hund's coupled impurity
• Quantum criticality in the spin-isotropic pseudogap Bose-Fermi Kondo model: entropy, scaling, and the g-theorem
• Quantum criticality and the break-up of the Kondo pseudo-potential