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Tagged with fermi-liquids effective-field-theory
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Marginal interactions for Fermi surfaces
I am struggling to understand Polchinski’s derivation (https://arxiv.org/abs/hep-th/9210046) of the conditions for marginality of the 4-fermi operator.
For a scattering process $(\mathbf{p}_1,\mathbf{...
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2
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1
answer
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Wilsonian RG approach to Fermi liquid theory
In modern terms, Landau's theory of Fermi liquids is understood as the fixed point of a Wilsonian RG as one scales towards the Fermi surface.
Shankar and others use the RG interpretation to explain ...
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