# Oscillons from string moduli

@article{Antusch2017OscillonsFS, title={Oscillons from string moduli}, author={Stefan Antusch and Francesco Cefal{\'a} and Sven Krippendorf and Francesco Muia and Stefano Orani and F. Quevedo}, journal={Journal of High Energy Physics}, year={2017}, volume={2018}, pages={1-42} }

A bstractA generic feature of string compactifications is the presence of many scalar fields, called moduli. Moduli are usually displaced from their post-inflationary minimum during inflation. Their relaxation to the minimum could lead to the production of oscillons: localised, long-lived, non-linear excitations of the scalar fields. Here we discuss under which conditions oscillons can be produced in string cosmology and illustrate their production and potential phenomenology with two explicit…

## 63 Citations

### Finite temperature effects in modular cosmology

- PhysicsJournal of Cosmology and Astroparticle Physics
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We revisit the cosmological history in the presence of light moduli by including possible thermal effects in the scalar potential. The well known cosmological moduli problem regards initial energy…

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- PhysicsJournal of Cosmology and Astroparticle Physics
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Oscillons are spatially localised strong fluctuations of a scalar field. They can e.g. form after inflation when the scalar field potential is shallower than quadratic away from the minimum. Although…

### Gravitational wave spectra from oscillon formation after inflation

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We systematically investigate the preheating behavior of single field inflation with an oscillon-supporting potential. We compute both the properties of the emitted gravitational waves as well as the…

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- PhysicsJournal of Cosmology and Astroparticle Physics
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Oscillons are extremely long-lived, spatially-localized field configurations in real-valued scalar field theories that slowly lose energy via radiation of scalar waves. Before their eventual demise,…

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