Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Extending multiple histogram reweighting to a continuous lattice spin
  system exhibiting a first order phase transition   We present extensive Monte Carlo simulations on a two-dimensional XY model
with a modified form of interaction potential. Thermodynamic quantities other
than energy, specific heat etc (such as magnetization, susceptibility, fourth
order cumulant of magnetization) are obtained using multiple-histogram
reweighting of the data obtained from the simulations. We employ an approach
which eliminates the need to construct two-dimensional histograms. This
approach makes judicious use of computer memory as well as CPU time.
Lee-kosterlitz's method of finite size scaling for a first order transition and
analysis using Binder's cumulant method allow us to make an accurate
determination of the transition temperature.

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The categories of this paper are: chao-dyn
36
The categories of this paper are: cmp-lg
11
The categories of this paper are: hep-lat
30
The categories of this paper are: q-alg
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The categories of this paper are: solv-int
6
The categories of this paper are: astro-ph
14
The categories of this paper are: math-ph
9
The categories of this paper are: nlin
3
The categories of this paper are: physics
13
The categories of this paper are: quant-ph
1
The categories of this paper are: cs
18
The categories of this paper are: econ
2
The categories of this paper are: math
21
The categories of this paper are: adap-org
28
The categories of this paper are: alg-geom
7
The categories of this paper are: hep-th