Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Two Interacting Electrons in a Disorder Potential: Localization
  Properties   Two electrons move in a quasi one--dimensional wire under the influence of a
short--range interaction. We restrict Hilbert space to those states where the
two electrons are close to each other. Using supersymmetry, we present a
complete analytical solution to this problem. The two--body interaction affects
the density of states and, thereby, the localization length. We derive a
criterion for the onset of changes of the localization length due to the
two--body interaction.

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
5
The categories of this paper are: gr-qc
2
The categories of this paper are: math
31
The categories of this paper are: ao-sci
18
The categories of this paper are: econ
12
The categories of this paper are: nucl-th
9
The categories of this paper are: nlin
26
The categories of this paper are: bayes-an
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
30
The categories of this paper are: q-alg
11
The categories of this paper are: hep-lat
22
The categories of this paper are: chao-dyn