Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Multicomponent dense electron gas as a model of Si MOSFET   We solve two-dimensional model of $N$-component dense electron gas in the
limit of large $N$ and in a range of the Coulomb interaction parameter:
$N^{-3/2}\ll r_s\ll 1$. The quasiparticle interaction on the Fermi circle
vanishes as 1/N. The ground state energy and the effective mass are found as
series in powers of $r_s^{2/3}$. In the quantum Hall state on the lowest Landau
level at integer filling: $1\ll\nu<N$, the charge activation energy gap and the
exchange constant are found.

24
The categories of this paper are: dg-ga
8
The categories of this paper are: hep-ex
37
The categories of this paper are: supr-con
17
The categories of this paper are: q-fin
33
The categories of this paper are: plasm-ph
3
The categories of this paper are: physics
1
The categories of this paper are: cs
12
The categories of this paper are: nucl-th
31
The categories of this paper are: ao-sci
13
The categories of this paper are: quant-ph
2
The categories of this paper are: math
30
The categories of this paper are: q-alg
0
The categories of this paper are: hep-ph
9
The categories of this paper are: nlin
16
The categories of this paper are: stat
7
The categories of this paper are: hep-th