Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Correlation Functions of the Anharmonic Oscillator: Numerical
  Verification of Two-Loop Corrections to the Large-Order Behavior   Recently, the large-order behavior of correlation functions of the
$O(N)$-anharmonic oscillator has been analyzed by us in [L. T. Giorgini et el.,
Phys. Rev. D 101, 125001 (2020)]. Two-loop corrections about the instanton
configurations were obtained for the partition function, and the two-point and
four-point functions, and the derivative of the two-point function at zero
momentum transfer. Here, we attempt to verify the obtained analytic results
against numerical calculations of higher-order coefficients for the $O(1)$,
$O(2)$, and $O(3)$ oscillators, and demonstrate the drastic improvement of the
agreement of the large-order asymptotic estimates and perturbation theory upon
the inclusion of the two-loop corrections to the large-order behavior.

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The categories of this paper are: econ
0
The categories of this paper are: hep-ph
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The categories of this paper are: chao-dyn
1
The categories of this paper are: cs
29
The categories of this paper are: funct-an
36
The categories of this paper are: cmp-lg
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The categories of this paper are: nlin
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The categories of this paper are: nucl-th
5
The categories of this paper are: gr-qc
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The categories of this paper are: quant-ph
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The categories of this paper are: stat
10
The categories of this paper are: q-bio
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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: supr-con
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The categories of this paper are: patt-sol