Parametric decay of the curvaton

Journal Article · Wed Oct 15 00:00:00 EDT 2008 · Journal of Cosmology and Astroparticle Physics

DOI:https://doi.org/10.1088/1475-7516/2008/10/013· OSTI ID:22156771

Enqvist, K; Nurmi, S ^[1]

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1. Department of Physics, University of Helsinki, PO Box 64, FIN-00014 (Finland)

We argue that the curvaton decay takes place most naturally by way of a broad parametric resonance. The mechanism is analogous to resonant inflaton decay but does not require any tuning of the curvaton coupling strength to other scalar fields. For low scale inflation and a correspondingly low mass scale for the curvaton, we speculate on observable consequences including the possibility of stochastic gravitational waves.

• OSTI ID: 22156771
• Journal Information: Journal of Cosmology and Astroparticle Physics, Vol. 2008, Issue 10; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1475-7516
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
GRAVITATIONAL WAVES
INFLATIONARY UNIVERSE
PARAMETRIC ANALYSIS
RESONANCE
SCALAR FIELDS
STOCHASTIC PROCESSES