Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Decay of correlations in 2D quantum systems with continuous symmetry   We study a large class of models of two-dimensional quantum lattice systems
with continuous symmetries, and we prove a general McBryan-Spencer-Koma-Tasaki
theorem concerning algebraic decay of correlations. We present applications of
our main result to the Heisenberg-, Hubbard-, and t-J models, and to certain
models of random loops.

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The categories of this paper are: cmp-lg
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The categories of this paper are: eess
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The categories of this paper are: solv-int
3
The categories of this paper are: physics
10
The categories of this paper are: q-bio
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The categories of this paper are: q-fin
1
The categories of this paper are: cs
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The categories of this paper are: plasm-ph
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The categories of this paper are: funct-an
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The categories of this paper are: chao-dyn
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The categories of this paper are: alg-geom
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The categories of this paper are: atom-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: quant-ph
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The categories of this paper are: hep-ex
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The categories of this paper are: bayes-an