Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Feynman Rules for Stochastic Inflationary Correlators   We elaborate on the functional integral describing the stochastic dynamics of
a spectator field during inflation, comparing its diagrammatic expansion to
that obtained directly from a perturbative solution of the corresponding
Langevin equation. We state Feynman rules for computing arbitrary temporal
$n$-point functions and perform some illustrative computations for a
$\lambda\phi^4$ interaction, paying attention to the role played by a
functional Jacobian determinant in the path integral. We also briefly consider
the case when the field contributes to the expansion rate, making the noise
multiplicative, which introduces additional vertices.

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The categories of this paper are: cond-mat
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The categories of this paper are: adap-org
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The categories of this paper are: q-bio
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The categories of this paper are: q-fin
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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: plasm-ph
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The categories of this paper are: math-ph
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The categories of this paper are: hep-lat
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The categories of this paper are: quant-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: hep-ph
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The categories of this paper are: hep-ex
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The categories of this paper are: funct-an
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The categories of this paper are: dg-ga
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The categories of this paper are: nucl-ex