Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On Perturbation Spectra of N-flation   In this note we study the adiabatic perturbation spectrum of N-flation with
power law potential. We show that the scalar spectrum of N-flation is generally
redder than that of its corresponding single field. The result obtained for
that with unequal massive fields is consistent with the recent numerical
investigation of Kim and Liddle.

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The categories of this paper are: eess
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The categories of this paper are: solv-int
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The categories of this paper are: stat
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The categories of this paper are: ao-sci
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The categories of this paper are: comp-gas
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The categories of this paper are: chao-dyn
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The categories of this paper are: cmp-lg
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The categories of this paper are: hep-lat
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The categories of this paper are: physics
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The categories of this paper are: cond-mat
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The categories of this paper are: quant-ph
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The categories of this paper are: hep-ex
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The categories of this paper are: acc-phys
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The categories of this paper are: atom-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: bayes-an