Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Collective oscillations of a Fermi gas near a Feshbach resonance   A sum rule approach is used to calculate the zero temperature oscillation
frequencies of a two component trapped atomic Fermi gas in the BCS-Bose
Einstein condensation crossover region. These sum rules are evaluated using a
local density approximation which explicitly includes Feshbach molecules.
Breathing modes show non-monotonic behavior as a function of the interaction
strength, while quadrupole modes are insensitive to interactions for both
spherically symmetric and axially symmetric traps. Quantitative agreement is
found with experiments on atomic $^6Li$ system and with other theoretical
approaches.

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The categories of this paper are: nucl-th
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The categories of this paper are: ao-sci
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The categories of this paper are: hep-lat
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The categories of this paper are: cmp-lg
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The categories of this paper are: supr-con
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The categories of this paper are: stat
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The categories of this paper are: adap-org
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The categories of this paper are: alg-geom
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The categories of this paper are: funct-an
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The categories of this paper are: eess
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The categories of this paper are: nlin
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The categories of this paper are: solv-int
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The categories of this paper are: atom-ph
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The categories of this paper are: econ
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The categories of this paper are: q-fin
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The categories of this paper are: quant-ph