Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Primordial Generation of Magnetic Fields   We reexamine generation of the primordial magnetic fields, at temperature
$T>80$TeV, by applying a consistent kinetic theory framework which is suitably
modified to take the quantum anomaly into account. The modified kinetic
equation can reproduce the known quantum field theoretic results upto the
leading orders. We show that our results qualitatively matches with the earlier
results obtained using heuristic arguments. The modified kinetic theory can
give the instabilities responsible for generation of the magnetic field due to
chiral imbalance in two distinct regimes: a) when the collisions play a
dominant role and b) when the primordial plasma can be regarded as
collisionless. We argue that the instability developing in the collisional
regime can dominate over the instability in the collisionless regime.

21
The categories of this paper are: adap-org
3
The categories of this paper are: physics
29
The categories of this paper are: funct-an
20
The categories of this paper are: acc-phys
15
The categories of this paper are: nucl-ex
36
The categories of this paper are: cmp-lg
6
The categories of this paper are: astro-ph
12
The categories of this paper are: nucl-th
25
The categories of this paper are: patt-sol
35
The categories of this paper are: mtrl-th
37
The categories of this paper are: supr-con
1
The categories of this paper are: cs
9
The categories of this paper are: nlin
19
The categories of this paper are: eess
24
The categories of this paper are: dg-ga
32
The categories of this paper are: atom-ph