Consistency relation for single scalar inflation

Andrei Gruzinov

doi:10.1103/PhysRevD.71.027301

Consistency relation for single scalar inflation

Andrei Gruzinov

Research output: Contribution to journal › Article › peer-review

Abstract

Single scalar field inflation with a generic, nonquadratic in derivatives, field Lagrangian is considered. It is shown that non-Gaussianity of curvature perturbations is characterized by two dimensionless amplitudes. One of these amplitudes can be expressed in terms of the usual inflationary observables-the scalar power, the tensor power, and the tensor index. This consistency relation provides an observational test for the single scalar inflation.

Original language	English (US)
Article number	027301
Pages (from-to)	027301-1-027301-2
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	71
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevD.71.027301
State	Published - Jan 2005

ASJC Scopus subject areas

Nuclear and High Energy Physics
Physics and Astronomy (miscellaneous)

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10.1103/PhysRevD.71.027301

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Consistency relation for single scalar inflation

Abstract

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