448 citations · 2.9k across the 57 of their papers we have counts for
57 papers
Magnetic field induced quantum criticality and the Luttinger sum rule
Y. Nishikawa, O. J. Curtin, A. C. Hewson +1
We show that when there is a sudden transition from a small to a large Fermi surface at a field-induced quantum critical point, similar to what may have been observed in some heavy…
Higher-order Fermi-liquid corrections for an Anderson impurity away from half-filling III: non-equilibrium transport
Akira Oguri, A. C. Hewson
We extend the microscopic Fermi-liquid theory for the Anderson impurity [Phys.\ Rev.\ B {\bf 64}, 153305 (2001)] to explore non-equilibrium transport at finite magnetic fields. Usi…
Higher-order Fermi-liquid corrections for an Anderson impurity away from half-filling II: equilibrium properties
Akira Oguri, A. C. Hewson
We study the low-energy behavior of the vertex function of a single Anderson impurity away from half-filling for finite magnetic fields, using the Ward identities with careful cons…
Higher-order Fermi-liquid corrections for an Anderson impurity away from half-filling
Akira Oguri, A. C. Hewson
We study the higher-order Fermi-liquid relations of Kondo systems for arbitrary impurity-electron fillings, extending the many-body quantum theoretical approach of Yamada-Yosida. I…
Fermi Liquids and the Luttinger Integral
O. J. Curtin, Y. Nishikawa, A. C. Hewson +1
The Luttinger Theorem, which relates the electron density to the volume of the Fermi surface in an itinerant electron system, is taken to be one of the essential features of a Ferm…
Renormalized parameters and perturbation theory in dynamical mean-field theory for the Hubbard model
A. C. Hewson
We calculate the renormalized parameters for the quasiparticles and their interactions for the Hubbard model in the paramagnetic phase as deduced from the low energy Fermi liquid f…