Bosonization of the Low Energy Excitations of Fermi Liquids

Preprint

8 April 1993

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/9304014

Abstract

We bosonize the low energy excitations of Fermi Liquids in any number of dimensions in the limit of long wavelengths. The bosons are coherent superposition of electron-hole pairs and are related with the displacement of the Fermi Surface in some arbitrary direction. A coherent-state path integral for the bosonized theory is derived and it is shown to represent histories of the shape of the Fermi Surface. The Landau equation for the sound waves is shown to be exact in the semiclassical approximation for the bosons.

Keywords

SEMICLASSICAL APPROXIMATION
LOW ENERGY EXCITATIONS
EXCITATIONS OF FERMI
FERMI SURFACE
FERMI LIQUIDS
BOSONS

All Related Versions

Version 1, 1993-04-08, ArXiv
Published version: Physical Review Letters, 72 (10), 1393.

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