Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Pomeranchuk Instability in a non-Fermi Liquid from Holography   The Pomeranchuk instability, in which an isotropic Fermi surface distorts and
becomes anisotropic due to strong interactions, is a possible mechanism for the
growing number of experimental systems which display transport properties that
differ along the $x$ and $y$ axes. We show here that the gauge-gravity duality
can be used to describe such an instability in fermionic systems. Our
holographic model consists of fermions in a background which describes the
causal propagation of a massive neutral spin-two field in an asymptotically AdS
spacetime. The Fermi surfaces in the boundary theory distort spontaneously and
become anisotropic once the neutral massive spin-two field develops a
normalizable mode in the bulk. Analysis of the fermionic correlators reveals
that the low-lying fermionic excitations are non-Fermi liquid-like both before
and after the Fermi surface shape distortion. Further, the spectral weight
along the Fermi surface is angularly dependent and can be made to vanish along
certain directions.

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The categories of this paper are: funct-an
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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-ex
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The categories of this paper are: alg-geom
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The categories of this paper are: adap-org
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The categories of this paper are: nucl-ex
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The categories of this paper are: quant-ph
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The categories of this paper are: math
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The categories of this paper are: chem-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: nlin
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The categories of this paper are: eess
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The categories of this paper are: stat
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The categories of this paper are: cmp-lg
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The categories of this paper are: mtrl-th
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The categories of this paper are: hep-lat