Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Kerr effect from diffractive skew scattering in chiral $p_x \pm i p_y$
  superconductors   We calculate the temperature dependent anomalous ac Hall conductance
$\sigma_H(\Omega, T)$ for a two-dimensional chiral p-wave superconductor. This
quantity determines the polar Kerr effect, as it was observed in Sr$_2$RuO$_4$
[J. Xia $et$ $al.$, Phys. Rev. Lett. 97, 167002 (2006)]. We concentrate on a
single band model with arbitrary isotropic dispersion relation subjected to
rare, weak impurities treated in the Born approximation. As we explicitly show
by detailed computation, previously omitted contributions to extrinsic part of
an anomalous Hall response, physically originating from diffractive skew
scattering on quantum impurity complexes, appear to the leading order in
impurity concentration. By direct comparison with published results from the
literature we demonstrate the relevance of our findings for the interpretation
of the Kerr effect measurements in superconductors.

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The categories of this paper are: chem-ph
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The categories of this paper are: q-alg
33
The categories of this paper are: plasm-ph
5
The categories of this paper are: gr-qc
26
The categories of this paper are: bayes-an
2
The categories of this paper are: math
1
The categories of this paper are: cs
8
The categories of this paper are: hep-ex
14
The categories of this paper are: math-ph
25
The categories of this paper are: patt-sol
19
The categories of this paper are: eess
9
The categories of this paper are: nlin
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The categories of this paper are: mtrl-th
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The categories of this paper are: atom-ph
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The categories of this paper are: dg-ga
3
The categories of this paper are: physics