Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the chiral separation effect in a slab   We study the influence of boundaries on chiral effects in hot dense
relativistic spinor matter in a strong magnetic field which is transverse to
bounding planes. The most general set of boundary conditions ensuring the
confinement of matter within the bounding planes is considered. We find that,
in thermal equilibrium, the nondissipative axial current along the magnetic
field is induced, depending on chemical potential and temperature, as well as
on a choice of boundary conditions. As temperature increases from zero to large
values, a stepwise behaviour of the axial current density as a function of
chemical potential is changed to a smooth one; the choice of a boundary
condition can facilitate either amplification or diminution of the chiral
separation effect. This points at a significant role of boundaries for physical
systems with hot dense magnetized relativistic spinor matter, e.g., compact
stars, heavy-ion collisions, novel materials known as Dirac and Weyl
semimetals.

30
The categories of this paper are: q-alg
17
The categories of this paper are: q-fin
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci
26
The categories of this paper are: bayes-an
2
The categories of this paper are: math
13
The categories of this paper are: quant-ph
28
The categories of this paper are: alg-geom
6
The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th
33
The categories of this paper are: plasm-ph
12
The categories of this paper are: nucl-th
25
The categories of this paper are: patt-sol
27
The categories of this paper are: comp-gas
11
The categories of this paper are: hep-lat
21
The categories of this paper are: adap-org