Striped instability of a holographic Fermi-like liquid
High Energy Physics - Theory
2011-11-10 v2 Strongly Correlated Electrons
Abstract
We consider a holographic description of a system of strongly-coupled fermions in 2+1 dimensions based on a D7-brane probe in the background of D3-branes. The black hole embedding represents a Fermi-like liquid. We study the excitations of the Fermi liquid system. Above a critical density which depends on the temperature, the system becomes unstable towards an inhomogeneous modulated phase which is similar to a charge density and spin wave state. The essence of this instability can be effectively described by a Maxwell-axion theory with a background electric field. We also consider the fate of zero sound at non-zero temperature.
Keywords
Cite
@article{arxiv.1106.3883,
title = {Striped instability of a holographic Fermi-like liquid},
author = {Oren Bergman and Niko Jokela and Gilad Lifschytz and Matthew Lippert},
journal= {arXiv preprint arXiv:1106.3883},
year = {2011}
}
Comments
16 pages, 9 figures; v2: added discussion and one figure. Typos corrected