Holographic Aspects of Fermi Liquids in a Background Magnetic Field

Details Holographic Aspects of Fermi Liquids in a Background Magnetic Field Holographic Aspects of Fermi Liquids in a Background Magnetic Field

2009-07-30

arxiv.org/abs/0907.5406v3

J. Phys. A: Math. Theor.43:345405, 2010

Physics

High Energy Physics

High Energy Physics - Theory

18 pages, 10 figures. Revised some of the terminology: changed non-separable solutions to infinite-sum solutions

Scientific paper

10.1088/1751-8113/43/34/345405

We study the effects of an external magnetic field on the properties of the quasiparticle spectrum of the class of 2+1 dimensional strongly coupled theories holographically dual to charged AdS$_4$ black holes at zero temperature. We uncover several interesting features. At certain values of the magnetic field, there are multiple quasiparticle peaks representing a novel level structure of the associated Fermi surfaces. Furthermore, increasing magnetic field deforms the dispersion characteristics of the quasiparticle peaks from non-Landau toward Landau behaviour. At a certain value of the magnetic field, just at the onset of Landau-like behaviour of the Fermi liquid, the quasiparticles and Fermi surface disappear.

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