Publication Date:
2015-01-23
Description:
Author(s): Layne C. Price, Hiranya V. Peiris, Jonathan Frazer, and Richard Easther We study the tensor spectral index n t and the tensor-to-scalar ratio r in the simplest multifield extension to single-field, slow-roll inflation models. We show that multifield models with potentials V∼∑iλ i |ϕ i | p have different predictions for n t /r than single-field models, even when all the coupling... [Phys. Rev. Lett. 114, 031301] Published Thu Jan 22, 2015
Keywords:
Gravitation and Astrophysics
Print ISSN:
0031-9007
Electronic ISSN:
1079-7114
Topics:
Physics
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