Axion Gauge Field Inflation and Gravitational Leptogenesis: A Lower Bound on B Modes from the Matter-Antimatter Asymmetry of the Universe

Abstract

We present a toy model of an axion gauge field inflation scenario that yields viable density and gravitational wave spectra. The scenario consists of an axionic inflaton in a steep potential that is effectively flattened by a coupling to a collection of non-Abelian gauge fields. The model predicts a blue-tilted gravitational wave spectrum that is dominated by one circular polarization, resulting in unique observational targets for cosmic microwave background and gravitational wave experiments. The handedness of the gravitational wave spectrum is incorporated in a model of leptogenesis through the axial-gravitational anomaly; assuming electroweak sphaeleron processes convert the lepton asymmetry into baryons, we predict an approximate lower bound on the tensor-to-scalar ratio r ~ 3-4e-2 for models that also explain the matter-antimatter asymmetry of the Universe.

18 pages, 7 figures. extended discussion of calculations. added references. clarified figures. match published version

References in corpus (50)

• Planck 2015 results. XIII. Cosmological parameters
• A 2.4% Determination of the Local Value of the Hubble Constant
• An All-Sky Analysis of Polarization in the Microwave Background
• Statistics of Cosmic Microwave Background Polarization
• Big Bang Nucleosynthesis: 2015
• A Joint Analysis of BICEP2/Keck Array and Planck Data
• What would we learn by detecting a gravitational wave signal in the cosmic microwave background anisotropy?
• The trouble with $H_0$
• Beyond LISA: Exploring Future Gravitational Wave Missions
• The Primordial Inflation Explorer (PIXIE): A Nulling Polarimeter for Cosmic Microwave Background Observations
• BICEP2 / Keck Array VI: Improved Constraints On Cosmology and Foregrounds When Adding 95 GHz Data From Keck Array
• Sensitivity curves for searches for gravitational-wave backgrounds
• Mission design of LiteBIRD
• The Quest for B Modes from Inflationary Gravitational Waves
• Reconciling Planck with the local value of $H_0$ in extended parameter space
• SPT-3G: A Next-Generation Cosmic Microwave Background Polarization Experiment on the South Pole Telescope
• Leptogenesis from Gravity Waves in Models of Inflation
• Improved Calculation of the Primordial Gravitational Wave Spectrum in the Standard Model
• Experimental signatures of the mixed axial-gravitational anomaly in the Weyl semimetal NbP
• Chromo-Natural Inflation: Natural inflation on a steep potential with classical non-Abelian gauge fields
• Neutrino Mass Models
• The Atacama Cosmology Telescope: The polarization-sensitive ACTPol instrument
• A new cosmic microwave background constraint to primordial gravitational waves
• Gravitational-wave cosmology across 29 decades in frequency
• 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
• The POLARBEAR-2 and the Simons Array Experiment
• CLASS: The Cosmology Large Angular Scale Surveyor
• Stability analysis of chromo-natural inflation and possible evasion of Lyth's bound
• Sensitivity to a Frequency-Dependent Circular Polarization in an Isotropic Stochastic Gravitational Wave Background
• Testing Parity-Violating Mechanisms with Cosmic Microwave Background Experiments
• Clustering Fossils from the Early Universe
• Axion Inflation with an SU(2) Gauge Field: Detectable Chiral Gravity Waves
• Limits on Dark Radiation, Early Dark Energy, and Relativistic Degrees of Freedom
• Higgsed Chromo-Natural Inflation
• SPIDER: Probing the Early Universe with a Suborbital Polarimeter
• BICEP3: a 95 GHz refracting telescope for degree-scale CMB polarization
• Gauge-flation trajectories in Chromo-Natural Inflation
• Gauge-flation confronted with Planck
• Chiral Gravity Waves and Leptogenesis in Inflationary Models with non-Abelian Gauge Fields
• Higgsed Gauge-flation
• BICEP2/Keck Array IV: Optical Characterization and Performance of the BICEP2 and Keck Array Experiments
• Gravitational Leptogenesis in the Axion Inflation with an SU(2) gauge field
• Testing chirality of primordial gravitational waves with Planck and future CMB data: no hope from angular power spectra
• Spectral distortions from the dissipation of tensor perturbations
• Two- and Three-Dimensional Probes of Parity in Primordial Gravity Waves
• Gravitational Wave - Gauge Field Oscillations
• A comment on power-law inflation with a dark radiation component
• Gravitational leptogenesis in Natural Inflation

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• Probing the gravitational wave background from cosmic strings with LISA
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• New constraint on Early Dark Energy from Planck and BOSS data using the profile likelihood
• Constraining axion inflation with gravitational waves from preheating
• Probing Parity-Violation with the Four-Point Correlation Function of BOSS Galaxies
• Cosmological Background Interpretation of Pulsar Timing Array Data
• The Science of the Einstein Telescope
• Probing non-Gaussian Stochastic Gravitational Wave Backgrounds with LISA
• Resolving the Hubble tension with Early Dark Energy
• Tensor Non-Gaussianity from Axion-Gauge-Fields Dynamics : Parameter Search
• Chiral effects in astrophysics and cosmology
• Isotropic cosmic birefringence from early dark energy
• Schwinger Effect by an $SU(2)$ Gauge Field during Inflation
• Non-Gaussianity from Axion-Gauge Fields Interactions during Inflation
• Chiral Gravitational Waves and Baryon Superfluid Dark Matter
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• Production and Backreaction of Spin-2 Particles of $SU(2)$ Gauge Field during Inflation
• Gravitational Leptogenesis, Reheating, and Models of Neutrino Mass
• Using a Primordial Gravitational Wave Background to Illuminate New Physics
• Nonlinear perturbations from axion-gauge fields dynamics during inflation
• Broken blue-tilted inflationary gravitational waves: a joint analysis of NANOGrav 15-year and BICEP/Keck 2018 data
• Nonlinear perturbations from the coupling of the inflaton to a non-Abelian gauge field, with a focus on Chromo-Natural Inflation
• The Higgs Boson can delay Reheating after Inflation
• Production and Backreaction of Fermions from Axion-$SU(2)$ Gauge Fields during Inflation
• Squeezed tensor non-Gaussianity in non-attractor inflation
• A new mechanism to enhance primordial tensor fluctuations in single field inflation
• Effects of Gravitational Chern-Simons during Axion-SU(2) Inflation
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• Observable Chiral Gravitational Waves from Inflation in String Theory
• Tensor non-Gaussianities from Non-minimal Coupling to the Inflaton
• Statistically Anisotropic Tensor Modes from Inflation
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• Gravitational wave production from preheating with trilinear interactions
• Gravitational leptogenesis in Natural Inflation
• New constraints on axion-gauge field dynamics during inflation from $Planck$ and BICEP/Keck data sets
• The isotropic attractor solution of axion-SU(2) inflation: Universal isotropization in Bianchi type-I geometry
• On chromonatural inflation in string theory
• Gravitational leptogenesis with kination and gravitational reheating
• Tensor Spectra Templates for Axion-Gauge Fields Dynamics during Inflation
• Gauge preheating with full general relativity
• Renormalization in gravitational leptogenesis with pseudo-scalar-tensor coupling
• Gravitational waves from spectator Gauge-flation
• "Stairway to Heaven" -- Spectroscopy of Particle Couplings with Gravitational Waves
• Chiral Anomaly in SU(2)${}_R$-Axion Inflation and the New Prediction for Particle Cosmology
• Physics Beyond The Standard Model with Circular Polarization in the CMB and CMB-21cm Cross-Correlation
• Gravitational Wave from Axion-SU(2) Gauge Fields: Effective Field Theory for Kinetically Driven Inflation
• Gravitational waves detectable in laser interferometers from axion-SU(2) inflation
• Primordial gravitational wave phenomenology with polarized Sunyaev Zel'dovich tomography
• Anisotropic Massive Gauge-flation
• A visual tool for assessing tension-resolving models in the $H_0$-${\sigma }_8$ plane
• SU($N$)-natural inflation
• Chiral gravitational effect in time-dependent backgrounds
• Flavour effects in gravitational leptogenesis
• Fast Likelihood-free Reconstruction of Gravitational Wave Backgrounds
• The Different Regimes of Axion Gauge Field Inflation
• Primordial Circular Polarization in the Cosmic Microwave Background
• Misalignment production of vector boson dark matter from axion-SU(2) inflation
• Magnetogenesis from axion-SU(2) inflation
• Chromo-natural inflation supported by enhanced friction from Horndeski gravity
• Production and backreaction of massive fermions during axion inflation with non-Abelian gauge fields
• 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
• Multimodality in the Search for New Physics in Pulsar Timing Data and the Case of Kination-amplified Gravitational-wave Background from Inflation
• Gravitational leptogenesis from metric perturbations
• On the prospects of thermalization of axion-SU(2) inflation
• Gravitational Leptogenesis in Bounce Cosmology
• On the inefficiency of fermion level-crossing under the parity-violating spin-2 gravitational field
• Axion Dark Matter Archaeology with Primordial Gravitational Waves
• Gravitational wave complementarity and impact of NANOGrav data on gravitational leptogenesis: cosmic strings
• Twisting inflation to sub-Planckian axion decay constants