Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Stochastic Gravitational-Wave Background from Axion-Monodromy Oscillons
  in String Theory During Preheating   Axion monodromy is a generic phenomenon in string compactifications. We
investigate the production of gravitational-wave background from axion
monodromy inflation during preheating. By performing lattice simulations using
pseudo-spectral methods, we find that significant single-peak stochastic
gravitational-wave backgrounds are generated during preheating for asymptotic
linear $|\phi|$ and $\phi^{2/3}$ potentials in axion monodromy inflation and
cuspy potentials. This may allow us to explore string compactifications through
gravitational waves.

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The categories of this paper are: nucl-th
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The categories of this paper are: quant-ph
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The categories of this paper are: math-ph
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The categories of this paper are: q-bio
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The categories of this paper are: math
1
The categories of this paper are: cs
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The categories of this paper are: dg-ga
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The categories of this paper are: econ
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The categories of this paper are: solv-int
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The categories of this paper are: cond-mat
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The categories of this paper are: ao-sci
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The categories of this paper are: bayes-an
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The categories of this paper are: eess
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The categories of this paper are: plasm-ph
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The categories of this paper are: mtrl-th
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The categories of this paper are: stat