Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Hydrodynamics from quantum fields: a regularized expansion from the
  Wigner distribution   Second-order relativistic hydrodynamics is surprisingly predictive, even in
the presence of large gradients. The hydrodynamic expansion from the method of
moments does not require a gradient expansion, but it is intrinsically bound to
the classic nature of relativistic kinetic theory. In this work a modified
version of the method of moments is applied the Wigner distribution (the
quantum precursor of the distribution function) to recover a systematically
improvable hydrodynamic expansion, avoiding the divergences that would
otherwise appear in the quantum case. The convergence of the regularized
expansion is checked numerically in a far from equilibrium, distant from the
kinetic limit case.

31
The categories of this paper are: ao-sci
13
The categories of this paper are: quant-ph
28
The categories of this paper are: alg-geom
18
The categories of this paper are: econ
20
The categories of this paper are: acc-phys
1
The categories of this paper are: cs
15
The categories of this paper are: nucl-ex
17
The categories of this paper are: q-fin
10
The categories of this paper are: q-bio
16
The categories of this paper are: stat
34
The categories of this paper are: chem-ph
4
The categories of this paper are: cond-mat
36
The categories of this paper are: cmp-lg
0
The categories of this paper are: hep-ph
22
The categories of this paper are: chao-dyn
30
The categories of this paper are: q-alg