Elementary Excitations in Quantum Fermi Liquid
Quantum Physics
2010-06-04 v1 Other Condensed Matter
General Physics
Abstract
Landau's theory of Fermi liquids is generalized by incorporating the de Broglie waves diffraction. A newly derived kinetic equation of the Fermi particles is used to derive a general dispersion relation and the excitation of zero sound is studied. A new mode is found due to the quantum correction. It is shown that the zero sound can exist even in an ideal Fermi gas. We also disclose a new branch of frequency spectrum due to the weak interaction.
Cite
@article{arxiv.1006.0369,
title = {Elementary Excitations in Quantum Fermi Liquid},
author = {Nodar L. Tsintsadze and Levan N. Tsintsadze},
journal= {arXiv preprint arXiv:1006.0369},
year = {2010}
}
Comments
Submitted to Physical Review Letters