Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: General kinetic solution for the Biermann battery with an associated
  pressure anisotropy generation   Fully kinetic analytic calculations of an initially Maxwellian distribution
with arbitrary density and temperature gradients exhibit the development of
temperature anisotropies and magnetic field growth associated with the Biermann
battery. The calculation, performed by taking a small order expansion of the
ratio of the Debye length to the gradient scale, predicts anisotropies and
magnetic fields as a function of space given an arbitrary temperature and
density profile. These predictions are shown to qualitatively match the values
measured from particle-in-cell simulations, where the development of the Weibel
instability occurs at the same location and with a wavenumber aligned with the
predicted temperature anisotropy.

30
The categories of this paper are: q-alg
34
The categories of this paper are: chem-ph
28
The categories of this paper are: alg-geom
4
The categories of this paper are: cond-mat
37
The categories of this paper are: supr-con
29
The categories of this paper are: funct-an
7
The categories of this paper are: hep-th
6
The categories of this paper are: astro-ph
5
The categories of this paper are: gr-qc
35
The categories of this paper are: mtrl-th
10
The categories of this paper are: q-bio
20
The categories of this paper are: acc-phys
22
The categories of this paper are: chao-dyn
13
The categories of this paper are: quant-ph
26
The categories of this paper are: bayes-an
15
The categories of this paper are: nucl-ex