Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Theory of the Raman spectra of the Shastry-Sutherland antiferromagnet
  SrCu$_2$(BO$_3$)$_2$ doped with nonmagnetic impurities   Controlled doping of SrCu$_2$(BO$_3$)$_2$, a faithful realization of the
Heisenberg spin-1/2 antiferromagnet on the Shastry-Sutherland lattice, with
non-magnetic impurities generates bound-states below the spin gap. These
bound-states and their symmetry properties are investigated by exact
diagonalisation of small clusters and within a simple effective model
describing a spinon submitted to an attractive extended potential. It is shown
that Raman spectroscopy is a unique technique to probe these bound-states.
Quantitative theoretical Raman spectra are numerically obtained.

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The categories of this paper are: chao-dyn
35
The categories of this paper are: mtrl-th
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The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an
9
The categories of this paper are: nlin
20
The categories of this paper are: acc-phys
6
The categories of this paper are: astro-ph
13
The categories of this paper are: quant-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: eess
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The categories of this paper are: atom-ph
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The categories of this paper are: supr-con
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The categories of this paper are: gr-qc
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The categories of this paper are: math
34
The categories of this paper are: chem-ph
21
The categories of this paper are: adap-org