Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Radio frequency spectroscopy of a strongly imbalanced Feshbach-resonant
  Fermi gas   A sufficiently large species imbalance (polarization) in a two-component
Feshbach resonant Fermi gas is known to drive the system into its normal state.
We show that the resulting strongly-interacting state is a conventional Fermi
liquid, that is, however, strongly renormalized by pairing fluctuations. Using
a controlled 1/N expansion, we calculate the properties of this state with a
particular emphasis on the atomic spectral function, the momentum distribution
functions displaying the Migdal discontinuity, and the radio frequency (RF)
spectrum. We discuss the latter in the light of the recent experiments of
Schunck et al. (cond-mat/0702066) on such a resonant Fermi gas, and show that
the observations are consistent with a conventional, but strongly renormalized
Fermi-liquid picture.

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The categories of this paper are: math-ph
1
The categories of this paper are: cs
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The categories of this paper are: quant-ph
3
The categories of this paper are: physics
21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
2
The categories of this paper are: math
18
The categories of this paper are: econ
32
The categories of this paper are: atom-ph
36
The categories of this paper are: cmp-lg
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The categories of this paper are: hep-ex
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The categories of this paper are: hep-lat
33
The categories of this paper are: plasm-ph
29
The categories of this paper are: funct-an
10
The categories of this paper are: q-bio
30
The categories of this paper are: q-alg