Consistency relation for single scalar inflation

Journal Article · Sat Jan 15 00:00:00 EST 2005 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PhysRevD.71.027301· OSTI ID:20705891

Gruzinov, Andrei ^[1]

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1. Center for Cosmology and Particle Physics, Department of Physics, New York University, New York 10003 (United States)

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.

• OSTI ID: 20705891
• Journal Information: Physical Review. D, Particles Fields, Vol. 71, Issue 2; Other Information: DOI: 10.1103/PhysRevD.71.027301; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
AMPLITUDES
COSMOLOGY
DISTURBANCES
INFLATIONARY UNIVERSE
LAGRANGIAN FIELD THEORY
LAGRANGIAN FUNCTION
PERTURBATION THEORY
SCALAR FIELDS
SCALARS
TENSORS