Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Thermodynamics of the O(3) model in 1+1 dimensions: lattice vs.
  analytical results   A detailed study of the thermodynamics of the O(N=3) model in 1+1 dimensions
is presented, employing a two-particle-irreducible resummation prescription as
well as fully nonperturbative finite-temperature lattice simulations. The
analytical results are computed using the Cornwall-Jackiw-Tomboulis (CJT)
formalism and the auxiliary field method to one- and to two-loop order. The
lattice results are obtained through Monte Carlo simulation for various lattice
spacings. The analytical and lattice results for pressure, trace anomaly, and
energy density, resembling closely those of four-dimensional Yang-Mills
theories, are compared with each other. We find that to one-loop order there is
a good correspondence between the CJT formalism and the lattice study for low
temperatures. However, at high T the two-loop calculation fares better,
correcting for the overestimation from the former approximation.

34
The categories of this paper are: chem-ph
26
The categories of this paper are: bayes-an
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The categories of this paper are: alg-geom
37
The categories of this paper are: supr-con
2
The categories of this paper are: math
27
The categories of this paper are: comp-gas
4
The categories of this paper are: cond-mat
32
The categories of this paper are: atom-ph
15
The categories of this paper are: nucl-ex
23
The categories of this paper are: solv-int
21
The categories of this paper are: adap-org
17
The categories of this paper are: q-fin
16
The categories of this paper are: stat
22
The categories of this paper are: chao-dyn
31
The categories of this paper are: ao-sci
10
The categories of this paper are: q-bio