Oscillating Chiral Tensor Spectrum from Axionic Inflation

Abstract

We study the axionic inflation with a modulated potential and examine if the primordial tensor power spectrum exhibits oscillatory feature, which is testable with future space-based gravitational wave experiments such as DECIGO and BBO. In the case of the single-field axion monodromy inflation, it turns out that it is difficult to detect the oscillation in the spectrum due to suppression of the sub-Planckian decay constant of axion. On the other hand, in the case of aligned chromo-natural inflation where the axion is coupled to a SU(2) gauge field, it turns out that the sizable oscillation in the tensor spectrum can occur due to the enhancement of chiral gravitational waves sourced by the gauge field. We expect that this feature will be a new probe to axion phenomenologies in early universe through the chiral gravitational waves.

References in corpus (41)

• Gravitational Wave Experiments and Early Universe Cosmology
• Possibility of Direct Measurement of the Acceleration of the Universe Using 0.1 Hz Band Laser Interferometer Gravitational Wave Antenna in Space
• Monodromy in the CMB: Gravity Waves and String Inflation
• Gravity Waves and Linear Inflation from Axion Monodromy
• Beyond LISA: Exploring Future Gravitational Wave Missions
• Angular Resolution of the LISA Gravitational Wave Detector
• Completing Natural Inflation
• Detector configuration of DECIGO/BBO and identification of cosmological neutron-star binaries
• Oscillations in the CMB from Axion Monodromy Inflation
• Particle production during inflation and gravitational waves detectable by ground-based interferometers
• Generation and Characterization of Large Non-Gaussianities in Single Field Inflation
• 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
• The Powers of Monodromy
• Direct detection of the inflationary gravitational wave background
• Resonant Non-Gaussianity
• 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
• Gauge Fields and Inflation: Chiral Gravitational Waves, Fluctuations and the Lyth Bound
• Perturbations in Chromo-Natural Inflation
• Stability analysis of chromo-natural inflation and possible evasion of Lyth's bound
• Natural Inflation and Quantum Gravity
• Primordial gravitational waves for universality classes of pseudoscalar inflation
• Running Spectral Index from Inflation with Modulations
• Searching for Oscillations in the Primordial Power Spectrum: Constraints from Planck (Paper II)
• Chiral Primordial Gravitational Waves from Dilaton Induced Delayed Chromo-natural Inflation
• Modulated Natural Inflation
• Planck Constraints on Monodromy Inflation
• Oscillations in the inflaton potential: Complete numerical treatment and comparison with the recent and forthcoming CMB datasets
• Correlation analysis of stochastic gravitational wave background around 0.1-1Hz
• Constraining Monodromy Inflation
• Searching for Oscillations in the Primordial Power Spectrum: Perturbative Approach (Paper I)
• Is there an effect of a nontrivial $c_T$ during inflation?
• Natural Inflation, Planck Scale Physics and Oscillating Primordial Spectrum
• Chromo-Natural Inflation in the Axiverse
• Aligned natural inflation with modulations
• Oscillating modulation to B-mode polarization from varying propagating speed of primordial gravitational waves
• Axion monodromy inflation with sinusoidal corrections
• Oscillation in power spectrum of primordial gravitational wave as a signature of higher-order stringy corrections
• Quantum coherent oscillations in the early universe

Cited by in corpus (37)

• Relic Abundance of Dark Photon Dark Matter
• Gravitational waves at interferometer scales and primordial black holes in axion inflation
• Unifying of Inflation with Early and Late Dark Energy Epochs in Axion $F(R)$ Gravity
• Geometric Inflation and Dark Energy with Axion $F(R)$ Gravity
• Higgsed Chromo-Natural Inflation
• Clockwork Axions in Cosmology: Is Chromonatural Inflation Chrononatural?
• Propagation of the gravitational waves in a cosmological background
• Aspects of Axion $F(R)$ Gravity
• Higgsed Gauge-flation
• 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
• Tensor non-Gaussianity in chiral scalar-tensor theories of gravity
• Axion-Gauge Dynamics During Inflation as the Origin of Pulsar Timing Array Signals and Primordial Black Holes
• Nonlinear perturbations from the coupling of the inflaton to a non-Abelian gauge field, with a focus on Chromo-Natural Inflation
• Kinetic Axion $F(R)$ Gravity Inflation
• Mixed Non-Gaussianity from Axion-Gauge Field Dynamics
• Statistically Anisotropic Tensor Modes from Inflation
• Footprint of Two-Form Field: Statistical Anisotropy in Primordial Gravitational Waves
• Chirality oscillation of primordial gravitational waves during inflation
• Generation of Primordial Black Holes and Gravitational Waves from Dilaton-Gauge Field Dynamics
• Instabilities in Horndeski Yang-Mills inflation
• Chiral primordial blue tensor spectra from the axion-gauge couplings
• Tensor Spectra Templates for Axion-Gauge Fields Dynamics during Inflation
• Stochastic Effects in Axion Inflation and Primordial Black Holes Formation
• Chiral Gravitational Waves from Chiral Fermions
• The Inflated Chern-Simons Number in Spectator Chromo-Natural Inflation
• Gravitational wave trispectrum in the axion-SU(2) model
• Chiral gravitational waves and primordial black holes in UV-protected Natural Inflation
• Universality of linear perturbations in SU($N$)-natural inflation
• Generation of gravitational waves from symmetry restoration during inflation
• Searching for Bispectrum of Stochastic Gravitational Waves with Pulsar Timing Arrays
• Parity violation in primordial tensor non-Gaussianities from matter bounce cosmology
• Kinetic Axion Dark Matter in String Corrected $f(R)$ Gravity
• $R^2$ Gravity Effects on the Kinetic Axion Phase Space
• New application of the Killing vector field formalism: Modified periodic potential and two-level profiles of the axionic dark matter distribution
• Scale invariance of the primordial tensor power spectrum
• Statistically-Anisotropic Tensor Bispectrum from Inflation