Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Linear stability of Israel-Stewart theory in the presence of net-charge
  diffusion   In this paper, we perform a linear stability analysis of Israel-Stewart
theory around a global equilibrium state, including the effects of shear-stress
tensor, net-baryon diffusion current and diffusion-viscous coupling. We find
all the relevant modes of this theory and derive necessary conditions that
these modes must satisfy in order to be stable and subluminal. With these
conditions, we then derive constraints for the shear and diffusion relaxation
times and the transport coefficients related to diffusion-viscous coupling.

37
The categories of this paper are: supr-con
36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
6
The categories of this paper are: astro-ph
23
The categories of this paper are: solv-int
9
The categories of this paper are: nlin
0
The categories of this paper are: hep-ph
10
The categories of this paper are: q-bio
21
The categories of this paper are: adap-org
26
The categories of this paper are: bayes-an
25
The categories of this paper are: patt-sol
30
The categories of this paper are: q-alg
8
The categories of this paper are: hep-ex
24
The categories of this paper are: dg-ga
2
The categories of this paper are: math
20
The categories of this paper are: acc-phys