Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the possibility of level broadening in a quantum dot due to
  electrostatic interaction with a gate electrode   In this article, we consider a quantum dot system which is interacting with a
spatially separated metallic gate electrode via direct Coulomb interaction.
Here, the gate electrode is described by an idealized two-dimensional electron
gas. Due to Coulomb scattering effects, the latter may introduce level
broadening to the quantum dot system.

19
The categories of this paper are: eess
31
The categories of this paper are: ao-sci
37
The categories of this paper are: supr-con
25
The categories of this paper are: patt-sol
24
The categories of this paper are: dg-ga
10
The categories of this paper are: q-bio
30
The categories of this paper are: q-alg
36
The categories of this paper are: cmp-lg
17
The categories of this paper are: q-fin
15
The categories of this paper are: nucl-ex
34
The categories of this paper are: chem-ph
21
The categories of this paper are: adap-org
8
The categories of this paper are: hep-ex
6
The categories of this paper are: astro-ph
9
The categories of this paper are: nlin
14
The categories of this paper are: math-ph