Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Hartree-Fock Study of Charge Redistribution in a 2D Mesoscopic
  Structure   In this paper, we investigate the ground state of two-dimensional disordered
cylinders which contain spinless, interacting electrons using the Hartree-Fock
approximation. Calculations of the deviation of the polarization from
uniformity reveal a tendency of the charge to rearrange towards the ends of the
system. The presence of disorder results in fluctuations of the deviation
around its mean value, which are more pronounced when the disorder strength is
of the order of the interaction between the electrons.

13
The categories of this paper are: quant-ph
24
The categories of this paper are: dg-ga
19
The categories of this paper are: eess
35
The categories of this paper are: mtrl-th
10
The categories of this paper are: q-bio
30
The categories of this paper are: q-alg
11
The categories of this paper are: hep-lat
29
The categories of this paper are: funct-an
3
The categories of this paper are: physics
18
The categories of this paper are: econ
1
The categories of this paper are: cs
8
The categories of this paper are: hep-ex
34
The categories of this paper are: chem-ph
17
The categories of this paper are: q-fin
7
The categories of this paper are: hep-th
31
The categories of this paper are: ao-sci