Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Finite size scaling and first order phase transition in a modified
  XY-model   Monte Carlo simulation has been performed in a two-dimensional modified
XY-model first proposed by Domany et. al [E. Domany, M. Schick and R. H.
Swendsen, Phys. Rev. Lett. 52, 1535 (1984)]. The cluster algorithm of Wolff has
been used and multiple histogram reweighting is performed. The first order
scaling behavior of the quantities like specific heat, order parameter
susceptibility and free energy barrier are found to be obeyed accurately. While
the lowest order correlation function was found to decay to zero at long
distance just above the transition, the next higher order correlation function
shows a non-zero plateau.

26
The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
5
The categories of this paper are: gr-qc
33
The categories of this paper are: plasm-ph
23
The categories of this paper are: solv-int
20
The categories of this paper are: acc-phys
32
The categories of this paper are: atom-ph
6
The categories of this paper are: astro-ph
16
The categories of this paper are: stat
3
The categories of this paper are: physics
34
The categories of this paper are: chem-ph
0
The categories of this paper are: hep-ph
13
The categories of this paper are: quant-ph
11
The categories of this paper are: hep-lat
22
The categories of this paper are: chao-dyn
31
The categories of this paper are: ao-sci