Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Variance of voltages in a lattice Coulomb gas   We study the behavior of the variance of the difference of energies for
putting an additional electric unit charge at two different locations in the
two-dimensional lattice Coulomb gas in the high-temperature regime. For this,
we exploit the duality between this model and a discrete Gaussian model. Our
estimates follow from a spontaneous symmetry breaking in the latter model.

36
The categories of this paper are: cmp-lg
22
The categories of this paper are: chao-dyn
25
The categories of this paper are: patt-sol
27
The categories of this paper are: comp-gas
28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
13
The categories of this paper are: quant-ph
30
The categories of this paper are: q-alg
4
The categories of this paper are: cond-mat
1
The categories of this paper are: cs
3
The categories of this paper are: physics
32
The categories of this paper are: atom-ph
37
The categories of this paper are: supr-con
8
The categories of this paper are: hep-ex
7
The categories of this paper are: hep-th
5
The categories of this paper are: gr-qc