Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Magneto-transport and divergent screening of driven two dimensional
  electron gas in high Landau levels   In two dimensional electron system in magnetic fields such that the Fermi
energy lies in high Landau levels and driven by microwave $ac$-field a
divergence of the Coulomb screening due to the Ryzhii photocurrent is
predicted. A model of magneto-transport with superposition of long range and
short range disorders is introduced. In this model the larger is the gradient
of the long range potential the smaller is the longitudinal
conductivity/resistivity. As a consequence a qualitative theory of the recently
discovered zero-resistance states is given.

0
The categories of this paper are: hep-ph
28
The categories of this paper are: alg-geom
37
The categories of this paper are: supr-con
33
The categories of this paper are: plasm-ph
21
The categories of this paper are: adap-org
17
The categories of this paper are: q-fin
32
The categories of this paper are: atom-ph
27
The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph
29
The categories of this paper are: funct-an
10
The categories of this paper are: q-bio
20
The categories of this paper are: acc-phys
30
The categories of this paper are: q-alg
15
The categories of this paper are: nucl-ex
3
The categories of this paper are: physics
2
The categories of this paper are: math