Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Interaction Corrections to Spin-Wave Theory in the Large-S Limit of the
  Quantum Heisenberg Ferromagnet   The Quantum Heisenberg Ferromagnet can be naturally reformulated in terms of
interacting bosons (called spin waves or magnons) as an expansion in the
inverse spin size. We calculate the first order interaction correction to the
free energy, as an upper bound in the limit where the spin size $S \to \infty$
and $\beta S$ is fixed ($\beta$ being the inverse temperature). Our result is
valid in two and three spatial dimensions. We extrapolate our result to compare
with Dyson's low-temperature expansion. While our first-order correction has
the expected temperature dependance, in higher orders of the perturbation
theory cancellations are necessary.

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The categories of this paper are: q-alg
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The categories of this paper are: stat
31
The categories of this paper are: ao-sci
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The categories of this paper are: acc-phys
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The categories of this paper are: alg-geom
8
The categories of this paper are: hep-ex
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The categories of this paper are: dg-ga
9
The categories of this paper are: nlin
17
The categories of this paper are: q-fin
10
The categories of this paper are: q-bio
25
The categories of this paper are: patt-sol
27
The categories of this paper are: comp-gas
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The categories of this paper are: atom-ph
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The categories of this paper are: supr-con
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The categories of this paper are: cmp-lg
26
The categories of this paper are: bayes-an