Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Quark pair creation in color electric fields and effects of magnetic
  fields   The time evolution of a system where a uniform and classical SU(3) color
electric field and quantum fields of quarks are dynamically coupled with each
other is studied focusing on non-perturbative pair creation and its back
reaction. We characterize the color direction of the electric field in a gauge
invariant way, and investigate its dependence. Momentum distributions of
created quarks show plasma oscillation as well as quantum effects such as the
Pauli blocking and interference. Pressure of the system is also calculated, and
we show that pair creation moderates degree of anisotropy of pressure.
Furthermore, enhancement of pair creation and induction of chiral charge under
a color magnetic field which is parallel to the electric field are discussed.

18
The categories of this paper are: econ
28
The categories of this paper are: alg-geom
11
The categories of this paper are: hep-lat
27
The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph
25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
6
The categories of this paper are: astro-ph
19
The categories of this paper are: eess
21
The categories of this paper are: adap-org
35
The categories of this paper are: mtrl-th
33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
15
The categories of this paper are: nucl-ex
5
The categories of this paper are: gr-qc
34
The categories of this paper are: chem-ph