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arXiv · 1106.3883

Striped instability of a holographic Fermi-like liquid

Oren Bergman·Niko Jokela·Gilad Lifschytz·Matthew Lippert
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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.

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Oren Bergman, Niko Jokela, Gilad Lifschytz, Matthew Lippert. 2011-11-08. Striped instability of a holographic Fermi-like liquid. https://doi.org/10.1007/jhep10(2011)034

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