Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nonequilibrium chiral fluid dynamics including dissipation and noise   We present a consistent theoretical approach for the study of nonequilibrium
effects in chiral fluid dynamics within the framework of the linear sigma model
with constituent quarks. Treating the quarks as an equilibrated heat bath we
use the influence functional formalism to obtain a Langevin equation for the
sigma field. This allows us to calculate the explicit form of the damping
coefficient and the noise correlators. For a selfconsistent derivation of both
the dynamics of the sigma field and the quark fluid we have to employ the 2PI
(two-particle irreducible) effective action formalism. The energy dissipation
from the field to the fluid is treated in the exact formalism of the 2PI
effective action where a conserved energy-momentum tensor can be constructed.
We derive its form and comment on approximations generating additional terms in
the energy-momentum balance of the entire system.

33
The categories of this paper are: plasm-ph
24
The categories of this paper are: dg-ga
9
The categories of this paper are: nlin
23
The categories of this paper are: solv-int
36
The categories of this paper are: cmp-lg
25
The categories of this paper are: patt-sol
3
The categories of this paper are: physics
28
The categories of this paper are: alg-geom
17
The categories of this paper are: q-fin
10
The categories of this paper are: q-bio
0
The categories of this paper are: hep-ph
1
The categories of this paper are: cs
22
The categories of this paper are: chao-dyn
21
The categories of this paper are: adap-org
2
The categories of this paper are: math
13
The categories of this paper are: quant-ph