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Tagged with fermi-liquids renormalization
4
questions
3
votes
0
answers
558
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Hertz-Millis theory and quantum criticality
Hartz-Millis(HM) theory is a model which exhibits quantum phase transition. The HM action following Altland & Simons is given by
$$
S = \frac{1}{\beta}\sum_{\omega_{n}}\int \frac{d^d q}{(2\pi)^d}\...
- 2,038
2
votes
1
answer
288
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Wilsonian RG approach to Fermi liquid theory
In modern terms, Landau's theory of Fermi liquids is understood as the fixed point of a Wilsonian RG as one scales towards the Fermi surface.
Shankar and others use the RG interpretation to explain ...
- 221
3
votes
0
answers
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How is mass renormalization in heavy fermion materials differnt from a normal Fermi Liquid?
In normal fermi liquid theory, I saw that the mass is renormalized as
$$ \frac{m*}{m}=1+\frac{F_0}{3} $$
Recently I saw a couple talks on heavy fermion materials. One described, the fermi liquid ...
- 1,424
12
votes
2
answers
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The "dangerous" fixed points for Renormalization Group
What is the definition of dangerously irrelevant renormalization-group (RG) fixed point?
What are some examples of dangerously irrelevant RG fixed points?
Do we also have the use of dangerously ...
- 7,848