Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Composite Fermion Geometric Resonance Near {\nu} = 1/2 Fractional
  Quantum Hall State   We observe geometric resonance features of composite fermions on the flanks
of the even denominator {\nu} = 1/2 fractional quantum Hall state in
high-mobility two-dimensional electron and hole systems confined to wide GaAs
quantum wells and subjected to a weak, strain-induced, unidirectional periodic
potential modulation. The features provide a measure of how close to {\nu} =
1/2 the system stays single-component and supports a composite fermion Fermi
sea before transitioning into a {\nu} = 1/2 fractional quantum Hall state,
presumably the two-component {\Psi}331 state.

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The categories of this paper are: ao-sci
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The categories of this paper are: adap-org
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The categories of this paper are: math
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The categories of this paper are: funct-an
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The categories of this paper are: hep-lat
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The categories of this paper are: acc-phys
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The categories of this paper are: nlin
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The categories of this paper are: nucl-th
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The categories of this paper are: eess
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The categories of this paper are: mtrl-th
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The categories of this paper are: econ
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The categories of this paper are: q-alg
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The categories of this paper are: nucl-ex
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The categories of this paper are: physics
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The categories of this paper are: quant-ph
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The categories of this paper are: q-bio