RG on a Fermi surface
نویسنده
چکیده
We review the renormalization group (RG) method for interacting fermions, building off typical φ theory to account for the presence of a Fermi surface. A few geometries and the general procedure are briefly discussed. The method is illustrated with a model of two Fermi circles with different spin components and momenta, which can describe experiments with interacting fermions. General results obtained from this method, such as implications for Fermi-liquid theory and the BCS instability, are summarized.
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