Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Simulating graphene impurities using the worm algorithm   The two-dimensional Ising model is studied by performing computer simulations
with one of the Monte Carlo algorithms - the worm algorithm. The critical
temperature T_C of the phase transition is calculated by the usage of the
critical exponents and the results are compared to the analytical result,
giving a very high accuracy.
  We also show that the magnetic ordering of impurities distributed on a
graphene sheet is possible, by simulating the properly constructed model using
the worm algorithm. The value of T_C is estimated. Furthermore, the dependence
of T_C on the interaction constants is explored. We outline how one can proceed
in investigating this relation in the future.

22
The categories of this paper are: chao-dyn
37
The categories of this paper are: supr-con
31
The categories of this paper are: ao-sci
36
The categories of this paper are: cmp-lg
5
The categories of this paper are: gr-qc
18
The categories of this paper are: econ
23
The categories of this paper are: solv-int
26
The categories of this paper are: bayes-an
30
The categories of this paper are: q-alg
17
The categories of this paper are: q-fin
9
The categories of this paper are: nlin
8
The categories of this paper are: hep-ex
29
The categories of this paper are: funct-an
25
The categories of this paper are: patt-sol
32
The categories of this paper are: atom-ph
11
The categories of this paper are: hep-lat