Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Holographic Quantum Critical Transport without Self-Duality   We describe general features of frequency-dependent charge transport near
strongly interacting quantum critical points in 2+1 dimensions. The simplest
description using the AdS/CFT correspondence leads to a self-dual
Einstein-Maxwell theory on AdS_4, which fixes the conductivity at a
frequency-independent self-dual value. We describe the general structure of
higher-derivative corrections to the Einstein-Maxwell theory, and compute their
implications for the frequency dependence of the quantum-critical conductivity.
We show that physical consistency conditions on the higher-derivative terms
allow only a limited frequency dependence in the conductivity. The frequency
dependence is amenable to a physical interpretation using transport of either
particle-like or vortex-like excitations.

14
The categories of this paper are: math-ph
30
The categories of this paper are: q-alg
18
The categories of this paper are: econ
2
The categories of this paper are: math
24
The categories of this paper are: dg-ga
32
The categories of this paper are: atom-ph
8
The categories of this paper are: hep-ex
13
The categories of this paper are: quant-ph
23
The categories of this paper are: solv-int
25
The categories of this paper are: patt-sol
3
The categories of this paper are: physics
15
The categories of this paper are: nucl-ex
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The categories of this paper are: nucl-th
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The categories of this paper are: comp-gas
10
The categories of this paper are: q-bio
9
The categories of this paper are: nlin