Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: S-duality in AdS/CFT magnetohydrodynamics   We study the nonlinear hydrodynamics of a 2+1 dimensional charged conformal
fluid subject to slowly varying external electric and magnetic fields.
Following recent work on deriving nonlinear hydrodynamics from gravity, we
demonstrate how long wavelength perturbations of the AdS dyonic black brane
solution of 4D supergravity are governed by equations equivalent to fluid
dynamics equations in the boundary theory. We investigate the implications of
$S$-duality for our system, and derive restrictions imposed on the transport
coefficients of a generic fluid invariant under the S operation. We also expand
on our earlier work and determine a new set of previously undetermined
transport coefficients for the conformal fluid with an AdS gravity dual. Quite
surprisingly, we discover that half of the transport coefficients allowed by
symmetry vanish in the holographic fluid at linear order in the hydrodynamic
expansion.

2
The categories of this paper are: math
8
The categories of this paper are: hep-ex
19
The categories of this paper are: eess
25
The categories of this paper are: patt-sol
0
The categories of this paper are: hep-ph
29
The categories of this paper are: funct-an
13
The categories of this paper are: quant-ph
16
The categories of this paper are: stat
26
The categories of this paper are: bayes-an
33
The categories of this paper are: plasm-ph
6
The categories of this paper are: astro-ph
14
The categories of this paper are: math-ph
30
The categories of this paper are: q-alg
36
The categories of this paper are: cmp-lg
11
The categories of this paper are: hep-lat
22
The categories of this paper are: chao-dyn