Non-Gaussianity from Axion-Gauge Fields Interactions during Inflation

Abstract

We study the scalar-tensor-tensor non-Gaussian signal in an inflationary model comprising also an axion coupled with SU(2) gauge fields. In this set-up, metric fluctuations are sourced by the gauge fields already at the linear level providing an enhanced chiral gravitational waves spectrum. The same mechanism is at work in generating an amplitude for the three-point function that is parametrically larger than in standard single-field inflation.

arXiv commentReferences added. 19 pages, 5 figures

References in corpus (82)

• Non-Gaussian features of primordial fluctuations in single field inflationary models
• Particle Physics Models of Inflation and the Cosmological Density Perturbation
• Planck 2013 results. XXII. Constraints on inflation
• Cosmological Backgrounds of Gravitational Waves
• Quasi-Single Field Inflation and Non-Gaussianities
• Completing Natural Inflation
• GRAVITY AND GLOBAL SYMMETRIES
• N-flation
• Planck 2015 results. XVII. Constraints on primordial non-Gaussianity
• Planck 2013 Results. XXIV. Constraints on primordial non-Gaussianity
• Science with the space-based interferometer LISA. IV: Probing inflation with gravitational waves
• Large Nongaussianity in Axion Inflation
• Naturally inflating on steep potentials through electromagnetic dissipation
• On Soft Limits of Inflationary Correlation Functions
• Large non-Gaussianities with Intermediate Shapes from Quasi-Single Field Inflation
• On the Possibility of Large Axion Decay Constants
• Chromo-Natural Inflation: Natural inflation on a steep potential with classical non-Abelian gauge fields
• Parity violation in the Cosmic Microwave Background from a pseudoscalar inflaton
• Phenomenology of a Pseudo-Scalar Inflaton: Naturally Large Nongaussianity
• Non-Gaussianity as a Particle Detector
• Gravitational waves at interferometer scales and primordial black holes in axion inflation
• Non-Abelian Gauge Field Inflation
• A review of Axion Inflation in the era of Planck
• Gauge-preheating and the end of axion inflation
• Gravity waves and non-Gaussian features from particle production in a sector gravitationally coupled to the inflaton
• Scale-dependent gravitational waves from a rolling axion
• Magnetogenesis from axion inflation
• Gauge Fields and Inflation: Chiral Gravitational Waves, Fluctuations and the Lyth Bound
• Primordial Gravitational Waves from Axion-Gauge Fields Dynamics
• Perturbations in Chromo-Natural Inflation
• Stability analysis of chromo-natural inflation and possible evasion of Lyth's bound
• Multiple field inflation
• Finding the chiral gravitational wave background of an axion-SU(2) inflationary model using CMB observations and laser interferometers
• Clustering Fossils from the Early Universe
• Blue Tensor Spectrum from Particle Production during Inflation
• Parity breaking signatures from a Chern-Simons coupling during inflation: the case of non-Gaussian gravitational waves
• Rolling axions during inflation: perturbativity and signatures
• Large Tensor Non-Gaussianity from Axion-Gauge Fields Dynamics
• Axion Gauge Field Inflation and Gravitational Leptogenesis: A Lower Bound on B Modes from the Matter-Antimatter Asymmetry of the Universe
• Imprints of Massive Primordial Fields on Large-Scale Structure
• Enhancing Inflationary Tensor Modes through Spectator Fields
• Parity violation in the CMB bispectrum by a rolling pseudoscalar
• Universal Constraints on Axions from Inflation
• Gravitational waves in bigravity cosmology
• On: Natural Inflation
• Inflationary tensor fossils in large-scale structure
• On the validity of the perturbative description of axions during inflation
• Tensor Non-Gaussianity from Axion-Gauge-Fields Dynamics : Parameter Search
• Anisotropic imprint of long-wavelength tensor perturbations on cosmic structure
• Gauge-flation trajectories in Chromo-Natural Inflation
• Natural Inflation: Consistency with Cosmic Microwave Background Observations of Planck and BICEP2
• Parity Violation of Gravitons in the CMB Bispectrum
• Parity-violating CMB correlators with non-decaying statistical anisotropy
• Axion Inflation and Gravity Waves in String Theory
• Gauge-flation confronted with Planck
• Parity-violating and anisotropic correlations in pseudoscalar inflation
• Low-Energy Effective Field Theory for Chromo-Natural Inflation
• Chiral Gravity Waves and Leptogenesis in Inflationary Models with non-Abelian Gauge Fields
• Signatures of a Graviton Mass in the Cosmic Microwave Background
• Gravitational Waves and Scalar Perturbations from Spectator Fields
• Chromo-Natural Model in Anisotropic Background
• Thermalized Axion Inflation
• Gauge Field Preheating at the End of Inflation
• Does the detection of primordial gravitational waves exclude low energy inflation?
• How Well Can We Really Determine the Scale of Inflation?
• Gravitational Leptogenesis in the Axion Inflation with an SU(2) gauge field
• Fossilized Gravitational Wave Relic and Primordial Clocks
• Mild bounds on bigravity from primordial gravitational waves
• Probing the inflationary particle content: extra spin-2 field
• Chern-Simons EM-flation
• Seeking Inflation Fossils in the Cosmic Microwave Background
• Can a spectator scalar field enhance inflationary tensor mode?
• On Synthetic Gravitational Waves from Multi-field Inflation
• Gravitational Wave - Gauge Field Oscillations
• Clustering Fossil from Primordial Gravitational Waves in Anisotropic Inflation
• Statistically Anisotropic Tensor Modes from Inflation
• Chromo-Natural inflation in Supergravity
• Thermalized axion inflation: natural and monomial inflation with small $r$
• Cosmological consequences of classical flavor-space locked gauge field radiation
• Chiral Imprint of a Cosmic Gauge Field on Primordial Gravitational Waves
• Possible Signatures of Inflationary Particle Content: Spin-2 Fields
• A note on Low Energy Effective Theory of Chromo Natural Inflation in the light of BICEP2 results

Cited by in corpus (40)

• Cosmology with the Laser Interferometer Space Antenna
• The CosmoVerse White Paper: Addressing observational tensions in cosmology with systematics and fundamental physics
• New physics from the polarised light of the cosmic microwave background
• Primordial gravitational waves from NANOGrav: a broken power-law approach
• The Science of the Einstein Telescope
• Large Spin-2 Signals at the Cosmological Collider
• Emerging chromo-natural inflation
• Production and Backreaction of Spin-2 Particles of $SU(2)$ Gauge Field during Inflation
• Nonlinear perturbations from axion-gauge fields dynamics during inflation
• Implications of Gravitational-wave Production from Dark Photon Resonance to Pulsar-timing Observations and Effective Number of Relativistic Species
• Gravitational wave background from non-Abelian reheating after axion-like inflation
• Production and Backreaction of Fermions from Axion-$SU(2)$ Gauge Fields during Inflation
• Mixed Non-Gaussianity from Axion-Gauge Field Dynamics
• Axion-Gauge Field Dynamics with Backreaction
• Effects of Gravitational Chern-Simons during Axion-SU(2) Inflation
• Tensor non-Gaussianities from Non-minimal Coupling to the Inflaton
• Backreaction of axion-SU(2) dynamics during inflation
• Generation of Primordial Black Holes and Gravitational Waves from Dilaton-Gauge Field Dynamics
• CMB B-mode non-Gaussianity: optimal bispectrum estimator and Fisher forecasts
• The isotropic attractor solution of axion-SU(2) inflation: Universal isotropization in Bianchi type-I geometry
• The non-linear dynamics of axion inflation: a detailed lattice study
• Tensor Spectra Templates for Axion-Gauge Fields Dynamics during Inflation
• Parity Violating Non-Gaussianity from Axion-Gauge Field Dynamics
• Inflation with multiple vector fields and non-Gaussianities
• Stochastic Effects in Axion Inflation and Primordial Black Holes Formation
• Charged Vector Inflation
• Gravitational wave trispectrum in the axion-SU(2) model
• Lattice simulations of axion-U(1) inflation: gravitational waves, magnetic fields, and scalar statistics
• Universality of linear perturbations in SU($N$)-natural inflation
• Primordial Stochastic Gravitational Wave Background Anisotropies: in-in Formalization and Applications
• Inflation from Multiple Pseudo-Scalar Fields: PBH Dark Matter and Gravitational Waves
• Gravitational waves detectable in laser interferometers from axion-SU(2) inflation
• Primordial gravitational wave phenomenology with polarized Sunyaev Zel'dovich tomography
• Chromo-natural inflation supported by enhanced friction from Horndeski gravity
• Relic Cosmological Vector Fields and Inflationary Gravitational Waves
• Effective Field Theory of Chiral Gravitational Waves
• Dark Energy with a Triplet of Classical U(1) Fields
• Statistically-Anisotropic Tensor Bispectrum from Inflation
• Axion Dark Matter Archaeology with Primordial Gravitational Waves
• Twisting inflation to sub-Planckian axion decay constants