Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Probing quasi-particle states in strongly interacting atomic gases by
  momentum-resolved Raman photoemission spectroscopy   We investigate a momentum-resolved Raman spectroscopy technique which is able
to probe the one-body spectral function and the quasi-particle states of a gas
of strongly interacting ultracold atoms. This technique is inspired by
Angle-Resolved Photo-Emission Spectroscopy, a powerful experimental probe of
electronic states in solid-state systems. Quantitative examples of
experimentally accessible spectra are given for the most significant regimes
along the BEC-BCS crossover. When the theory is specialized to RF spectroscopy,
agreement is found with recent experimental data. The main advantages of this
Raman spectroscopy over existing techniques are pointed out.

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The categories of this paper are: astro-ph
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The categories of this paper are: cs
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The categories of this paper are: atom-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: eess
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The categories of this paper are: acc-phys
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The categories of this paper are: dg-ga
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The categories of this paper are: bayes-an
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The categories of this paper are: econ
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The categories of this paper are: alg-geom
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The categories of this paper are: physics
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The categories of this paper are: hep-lat
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The categories of this paper are: patt-sol
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The categories of this paper are: hep-ex
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The categories of this paper are: stat
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The categories of this paper are: solv-int