Enhancing inflationary tensor modes through spectator fields

Biagetti, Matteo; Fasiello, Matteo; Riotto, Antonio Walter

doi:10.1103/PhysRevD.88.103518

Scientific article

English

Enhancing inflationary tensor modes through spectator fields

ContributorsBiagetti, Matteo; Fasiello, Matteo; Riotto, Antonio Walter

Published inPhysical review. D. Particles, fields, gravitation, and cosmology, vol. 88, no. 10

Publication date2013

Abstract

We show that a large contribution to tensor modes during inflation can be generated by a spectator scalar field with a speed of sound lower than unity

Affiliation entities

Faculté des sciences / Section de physique / Département de physique théorique

Citation (ISO format)

BIAGETTI, Matteo, FASIELLO, Matteo, RIOTTO, Antonio Walter. Enhancing inflationary tensor modes through spectator fields. In: Physical review. D. Particles, fields, gravitation, and cosmology, 2013, vol. 88, n° 10. doi: 10.1103/PhysRevD.88.103518

Article (Published version)

Identifiers

PID : unige:36476
DOI : 10.1103/PhysRevD.88.103518

Journal ISSN1550-2368

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Enhancing inflationary tensor modes through spectator fields

We show that a large contribution to tensor modes during inflation can be generated by a spectator scalar field with a speed of sound lower than unity

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