Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Interaction of charged impurities and Rydberg excitons in cuprous oxide   We investigate the influence of a static, uncorrelated distribution of
charged impurities on the spectrum of bound excitons in the copper oxide
Cu$_{\text{2}}$O. We show that the statistical distribution of Stark shifts and
ionisation rates leads to the vanishing of Rydberg resonances into an apparent
continuum. The appearance of additional absorption lines due to the broken
rotational symmetry, together with spatially inhomogeneous Stark shifts, leads
to a modification of the observed line shapes that agree qualitatively with the
changes observed in the experiment.

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The categories of this paper are: patt-sol
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The categories of this paper are: chao-dyn
8
The categories of this paper are: hep-ex
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The categories of this paper are: acc-phys
33
The categories of this paper are: plasm-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: adap-org
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: quant-ph
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The categories of this paper are: solv-int
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The categories of this paper are: hep-lat
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The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph
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The categories of this paper are: bayes-an