Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Numerical investigation of the aging of the Fully-Frustrated XY model   We study the out-of-equilibrium dynamics of the fully-frustrated XY model. At
equilibrium, this model undergoes two phase transitions at two very close
temperatures: a Kosterlitz-Thouless topological transition and a second-order
phase transition between a paramagnetic phase and a low-temperature phase where
the chiralities of the lattice plaquettes are anti-ferromagnetically ordered.
We compute by Monte Carlo simulations two-time spin-spin and
chirality-chirality autocorrelation and response functions. From the dynamics
of the spin waves in the low temperature phase, we extract the
temperature-dependent exponent $\eta$. We provide evidences for logarithmic
corrections above the Kosterlitz-Thouless temperature and interpret them as a
manifestation of free topological defects. Our estimates of the autocorrelation
exponent and the fluctuation-dissipation ratio differ from the XY values, while
$\eta(T_{\rm KT})$ lies at the boundary of the error bar. Indications for
logarithmic corrections at the second-order critical temperature are presented.
However, the coupling between angles and chiralities is still strong and
explains why autocorrelation exponent and fluctuation-dissipation ratio are far
from the Ising values and seems stable.

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The categories of this paper are: hep-th
36
The categories of this paper are: cmp-lg
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The categories of this paper are: dg-ga
34
The categories of this paper are: chem-ph
2
The categories of this paper are: math
17
The categories of this paper are: q-fin
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The categories of this paper are: math-ph
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The categories of this paper are: nucl-ex
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The categories of this paper are: hep-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: q-alg
37
The categories of this paper are: supr-con
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The categories of this paper are: hep-lat
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The categories of this paper are: q-bio
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The categories of this paper are: adap-org
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The categories of this paper are: chao-dyn