Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Effective theory of fluctuating circulating currents in high-Tc cuprates   We derive an effective dissipative quantum field theory for fluctuating
orbital currents in clean $CuO_2$ sheets of high-$T_c$ cuprates, based on a
three-band model. The Coulomb repulsion term between $Cu$- and $O$-sites is
decoupled in terms of current operators representing horizontal and vertical
parts of circulating currents within each $CuO_2$ unit cell of the lattice. The
model has ordering of currents at finite temperatures. The dissipative kernel
in the model is of the form $|\omega|/|{\bf q}|$, indicating Landau damping.
Applications of the effective theory to other models are also discussed.

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The categories of this paper are: plasm-ph
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The categories of this paper are: math-ph
7
The categories of this paper are: hep-th
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The categories of this paper are: comp-gas
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The categories of this paper are: nucl-ex
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The categories of this paper are: q-fin
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The categories of this paper are: chem-ph
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The categories of this paper are: econ
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The categories of this paper are: bayes-an
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The categories of this paper are: alg-geom
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The categories of this paper are: chao-dyn
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The categories of this paper are: funct-an
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The categories of this paper are: hep-lat
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The categories of this paper are: ao-sci
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The categories of this paper are: patt-sol
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The categories of this paper are: mtrl-th