Anomaly Induced Inflation in the Minimal Quartic Extension of Einstein's Gravity

Abstract

A particular extension of Einstein's General Relativity up to and including quartic terms in the curvature tensor is minimal in the sense that it has a unique maximally symmetric vacuum and only a massless spin-2 excitation in its spectrum around the vacuum. We study the inflation phase of the universe in this minimal quartic extension of Einstein's gravity in the presence of trace anomaly terms coming from the Standard Model fields and the fields of the Minimal Supersymmetric Standard Model. We show that the theory allows a quasi-de Sitter phase with sufficient $e$-foldings.

29 pages, 11 figures

References in corpus (17)

• Nine-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Final Maps and Results
• Twenty Years of the Weyl Anomaly
• Cosmological inflation in $F(R,\mathcal{G})$ gravity
• Trace anomaly driven inflation
• Effective Action of Vacuum: Semiclassical Approach
• Asymptotically Safe Inflation
• Born-Infeld extension of new massive gravity
• Noether Symmetry Approach in Gauss-Bonnet Cosmology
• Shortcuts to high symmetry solutions in gravitational theories
• Trace-anomaly driven inflation in modified gravity and the BICEP2 result
• From stable to unstable anomaly-induced inflation
• Unitarity analysis of general Born-Infeld gravity theories
• Particle Content of Quadratic and $f(R_{\mu \nu \sigma \rho })$ Theories in $(A)dS$
• Born-Infeld Gravity with a Massless Graviton in Four Dimensions
• Minimal Extension of Einstein's Theory: The Quartic Gravity
• Born-Infeld Gravity with a Unique Vacuum and a Massless Graviton
• Kerr-Vaidya type radiating black holes in semi-classical gravity with conformal anomaly