Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: CFT description of the Fully Frustrated XY model and phase diagram
  analysis   Following a suggestion given in Nucl. Phys. B 300 (1988)611,we show how the
U(1)*Z_{2} symmetry of the fully frustrated XY (FFXY) model on a square lattice
can be accounted for in the framework of the m-reduction procedure developed
for a Quantum Hall system at "paired states" fillings nu =1 (cfr. Cristofano et
al.,Mod. Phys. Lett. A 15 (2000)1679;Nucl. Phys. B 641 (2002)547). The
resulting twisted conformal field theory (CFT) with central charge c=2 is shown
to well describe the physical properties of the FFXY model. In particular the
whole phase diagram is recovered by analyzing the flow from the Z_{2}
degenerate vacuum of the c=2 CFT to the infrared fixed point unique vacuum of
the c=3/2 CFT. The last theory is known to successfully describe the critical
behavior of the system at the overlap temperature for the Ising and
vortex-unbinding transitions.

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The categories of this paper are: nlin
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The categories of this paper are: eess
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The categories of this paper are: q-alg
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The categories of this paper are: gr-qc
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The categories of this paper are: math
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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: nucl-ex
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The categories of this paper are: adap-org
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The categories of this paper are: ao-sci
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The categories of this paper are: econ
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The categories of this paper are: quant-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: alg-geom
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The categories of this paper are: comp-gas