Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Universality of second order transport coefficients from the
  gauge-string duality   We consider the strongly coupled limit of conformal gauge theory plasmas with
conserved U(1) charges which have a gravity dual. We show that, under mild
restrictions, the second order transport coefficients of such theories satisfy
a universal relation among themselves, similar to the shear viscosity to
entropy ratio.

2
The categories of this paper are: math
17
The categories of this paper are: q-fin
31
The categories of this paper are: ao-sci
25
The categories of this paper are: patt-sol
15
The categories of this paper are: nucl-ex
6
The categories of this paper are: astro-ph
13
The categories of this paper are: quant-ph
34
The categories of this paper are: chem-ph
14
The categories of this paper are: math-ph
32
The categories of this paper are: atom-ph
4
The categories of this paper are: cond-mat
3
The categories of this paper are: physics
16
The categories of this paper are: stat
9
The categories of this paper are: nlin
35
The categories of this paper are: mtrl-th
8
The categories of this paper are: hep-ex