Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Disorder Operators, Quantum Doubles, and Haag Duality in 1+1 Dimensions   We demonstrate the role of Drinfeld's quantum double D(G) as a spontaneously
broken hidden symmetry in a large class of massive quantum field theories in
1+1 dimensions with compact symmetry group G. Our considerations are
independent of exact integrability. The main technical ingredient is an
assumption concerning the statistical independence of fields localized in
spacelike separated regions which should hold in all reasonable massive models.
The present note is an abridged version of hep-th/9606175.

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The categories of this paper are: hep-ex
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The categories of this paper are: eess
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The categories of this paper are: chao-dyn
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The categories of this paper are: astro-ph
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The categories of this paper are: cond-mat
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The categories of this paper are: physics
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The categories of this paper are: comp-gas
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The categories of this paper are: gr-qc
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The categories of this paper are: econ
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The categories of this paper are: hep-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: math
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The categories of this paper are: cmp-lg
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The categories of this paper are: bayes-an
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The categories of this paper are: acc-phys
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The categories of this paper are: nucl-th