All Questions
Tagged with fermi-liquids self-energy
2
questions
2
votes
0
answers
162
views
Infrared cutoff in the Kramers-Kronig relation for the marginal Fermi liquid
I am going through Andre-Marie Tremblay's derivation of the real part of the self energy in his lecture notes on the many-body problem. On page
254, if we take the imaginary $\Sigma''(k,\,\omega)\sim \...
- 2,665
7
votes
1
answer
2k
views
Self-energy of a Fermi liquid
A weakly correlated many-electron system can be viewed in a first approximation as a Fermi liquid, meaning that it behaves similarly to a non-interacting electron gas with renormalized parameters.
In ...
- 2,469