Landau Fermi liquid - general

https://en.wikipedia.org/wiki/Fermi_liquid_theory

Nozieres-Pines Theory of quantum liquids

• Chapter 4 - Fermi-liquid theory Dupius 2019

see page 26(310) for the full density-density correlation function

general - Lecture notes about condensed matter

http://eduardo.physics.illinois.edu/phys561/FL.pdf
Fermi liquids and non–Fermi liquids Shultz 1995

https://en.wikipedia.org/wiki/Goldstone_boson

1996 Phonons as Goldstone bosons H. Leutwyler

1966 Nonrelativistic Theorem Analogous to the Goldstone Theorem Robert V. Lange