A density spike on astrophysical scales from an N-field waterfall transition

A density spike on astrophysical scales from an N-field waterfall transition

Hybrid inflation models are especially interesting as they lead to a spike in the density power spectrum on small scales, compared to the CMB, while also satisfying current bounds on tensor modes. Here we study hybrid inflation with N waterfall fields sharing a global SO(N) symmetry. The inclusion o...

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Bibliographic Details
Main Authors: Halpern, Illan F. (Contributor), Joss, Matthew Albert Henry (Contributor), Sfakianakis, Evangelos I. (Contributor), Hertzberg, Mark Peter (Contributor)
Other Authors: Massachusetts Institute of Technology. Center for Theoretical Physics (Contributor), Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences (Contributor), Massachusetts Institute of Technology. Department of Physics (Contributor)
Format: Article
Language:English
Published: Elsevier, 2015-08-24T16:10:24Z.
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