Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Conductivities in an anisotropic medium   In order to imitate anisotropic medium of a condensed matter system, we take
into account an Einstein-Maxwell-dilaton-axion model as a dual gravity theory
where the anisotropy is caused by different momentum relaxations. This gravity
model allows an anisotropic charged black hole solution. On this background, we
investigate how the linear responses of vector modes like electric,
thermoelectric, and thermal conductivities rely on the anisotropy. We find that
the electric conductivity in low frequency limit shows a Drude peak and that in
the intermediate frequency regime it reveals the power law behavior.
Especially, when the anisotropy increases the exponent of the power law becomes
smaller. In addition, we find that there exist a critical value for the
anisotropy at which the DC conductivity reaches to its maximum value.

8
The categories of this paper are: hep-ex
28
The categories of this paper are: alg-geom
20
The categories of this paper are: acc-phys
6
The categories of this paper are: astro-ph
16
The categories of this paper are: stat
18
The categories of this paper are: econ
35
The categories of this paper are: mtrl-th
37
The categories of this paper are: supr-con
0
The categories of this paper are: hep-ph
29
The categories of this paper are: funct-an
36
The categories of this paper are: cmp-lg
3
The categories of this paper are: physics
30
The categories of this paper are: q-alg
5
The categories of this paper are: gr-qc
9
The categories of this paper are: nlin
31
The categories of this paper are: ao-sci