Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spacing statistics in two-mode random lasing   The distribution of spacings between the lasing frequencies for an ensemble
of random lasers in the two-mode regime was computed. The random lasers are
implemented as open chaotic cavities filled with an active medium. The spectral
properties of the passive cavities are modeled with non-Hermitian random
matrices. The spacing distribution is found to depend on the relation between
the gain-profile width and the mean spacing of the passive-cavity modes. The
distribution displays mode repulsion and, under certain conditions, agrees with
the Wigner surmise. The role of mode competition is discussed.

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The categories of this paper are: chem-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: math-ph
16
The categories of this paper are: stat
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The categories of this paper are: funct-an
10
The categories of this paper are: q-bio
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The categories of this paper are: cmp-lg
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The categories of this paper are: mtrl-th
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The categories of this paper are: hep-lat
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The categories of this paper are: econ
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The categories of this paper are: q-fin
7
The categories of this paper are: hep-th
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The categories of this paper are: dg-ga
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The categories of this paper are: alg-geom
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The categories of this paper are: astro-ph
13
The categories of this paper are: quant-ph