Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Electrostatic theory for imaging experiments on local charges in quantum
  Hall systems   We use a simple electrostatic treatment to model recent experiments on
quantum Hall systems, in which charging of localised states by addition of
integer or fractionally-charged quasiparticles is observed. Treating the
localised state as a compressible quantum dot or antidot embedded in an
incompressible background, we calculate the electrostatic potential in its
vicinity as a function of its charge, and the chemical potential values at
which its charge changes. The results offer a quantitative framework for
analysis of the observations.

5
The categories of this paper are: gr-qc
24
The categories of this paper are: dg-ga
36
The categories of this paper are: cmp-lg
15
The categories of this paper are: nucl-ex
37
The categories of this paper are: supr-con
17
The categories of this paper are: q-fin
7
The categories of this paper are: hep-th
30
The categories of this paper are: q-alg
9
The categories of this paper are: nlin
10
The categories of this paper are: q-bio
18
The categories of this paper are: econ
20
The categories of this paper are: acc-phys
6
The categories of this paper are: astro-ph
29
The categories of this paper are: funct-an
0
The categories of this paper are: hep-ph
31
The categories of this paper are: ao-sci