Anisotropies in the Gravitational Wave Background from Preheating

Abstract

We investigate the anisotropies in the gravitational wave (GW) background produced at preheating after inflation. Using lattice field theory simulations of a massless preheating model, we show that the GW amplitude depends sensitively on the value of the decay product field chi coupled to the inflaton phi, with the only requisite that chi is light during inflation. We find a strong anisotropy in the amplitude of the GW background on large angular scales, the details of which strongly depend on the reheating dynamics. We expect similar conclusions for a wide class of inflationary models with light scalar fields. If future direct detection GW experiments are capable of detecting the GW produced by preheating, they should also be able to detect this effect. This could eventually provide a powerful way to distinguish between different inflationary and preheating scenarios.

5 pages, 3 figures

References in corpus (12)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Theory and Numerics of Gravitational Waves from Preheating after Inflation
• A Gravitational Wave Background from Reheating after Hybrid Inflation
• Gravitational-Wave Stochastic Background from Kinks and Cusps on Cosmic Strings
• A stochastic background of gravitational waves from hybrid preheating
• Gravitational Waves from Abelian Gauge Fields and Cosmic Strings at Preheating
• Exact Scale-Invariant Background of Gravitational Waves from Cosmic Defects
• Non-Gaussian Spikes from Chaotic Billiards in Inflation Preheating
• Search for a stochastic background of 100-MHz gravitational waves with laser interferometers
• Lattice calculation of non-Gaussianity from preheating
• Non-Gaussianity from massless preheating

Cited by in corpus (60)

• Cosmological Backgrounds of Gravitational Waves
• Nonperturbative Dynamics Of Reheating After Inflation: A Review
• Science with the space-based interferometer LISA. IV: Probing inflation with gravitational waves
• Challenges and Opportunities of Gravitational Wave Searches at MHz to GHz Frequencies
• Cosmology with the Laser Interferometer Space Antenna
• Reheating predictions in single field inflation
• Gravitational waves from gauge preheating
• Constraining axion inflation with gravitational waves from preheating
• Cosmological Background Interpretation of Pulsar Timing Array Data
• Probing Anisotropies of the Stochastic Gravitational Wave Background with LISA
• The Gravitational-Wave Physics II: Progress
• The art of simulating the early Universe -- Part I
• Primordial Anisotropies in the Gravitational Wave Background from Cosmological Phase Transitions
• Constraining axion inflation with gravitational waves across 29 decades in frequency
• Science with the TianQin Observatory: Preliminary Results on Stochastic Gravitational-Wave Background
• Gravitational wave production from preheating: parameter dependence
• Preheating after multifield inflation with nonminimal couplings, III: Dynamical spacetime results
• The Decay of the Standard Model Higgs after Inflation
• Preheating after multifield inflation with nonminimal couplings, II: Resonance Structure
• Parametric Resonance in the Early Universe - A Fitting Analysis
• On the Anisotropy of the Gravitational Wave Background from Massless Preheating
• Scalar correlation functions in de Sitter space from the stochastic spectral expansion
• Gravitational Wave from Graviton Bremsstrahlung during Reheating
• Cross-correlating Astrophysical and Cosmological Gravitational Wave Backgrounds with the Cosmic Microwave Background
• Large anisotropies of the stochastic gravitational wave background from cosmic domain walls
• Small scale induced gravitational waves from primordial black holes, a stringent lower mass bound, and the imprints of an early matter to radiation transition
• Stochastic Background of Gravitational Waves from Fermions -- Theory and Applications
• Gravitational wave production from the decay of the Standard Model Higgs field after inflation
• Lattice implementation of Abelian gauge theories with Chern-Simons number and an axion field
• Complete analysis of the background and anisotropies of scalar-induced gravitational waves: primordial non-Gaussianity $f_{\mathrm{NL}}$ and $g_{\mathrm{NL}}$ considered
• Challenges and Opportunities of Gravitational Wave Searches above 10 kHz
• Constraining early dark energy with gravitational waves before recombination
• The charged inflaton and its gauge fields: preheating and initial conditions for reheating
• A Theory of Self-Resonance After Inflation, Part 1: Adiabatic and Isocurvature Goldstone Modes
• New universal property of cosmological gravitational wave anisotropies
• Gravitational wave production from preheating with trilinear interactions
• Lectures on Reheating after Inflation
• Anisotropies in Scalar-Induced Gravitational-Wave Background from Inflaton-Curvaton Mixed Scenario with Sound Speed Resonance
• Unraveling Cosmological Anisotropies within Stochastic Gravitational Wave Backgrounds
• "Stairway to Heaven" -- Spectroscopy of Particle Couplings with Gravitational Waves
• Linking the BICEP2 result and the hemispherical power asymmetry through spatial variation of $r$
• Large Primordial Fluctuations in Gravitational Waves from Phase Transitions
• Numerical study of inflationary preheating with arbitrary power-law potential and a realization of curvaton mechanism
• Hemispherical asymmetry from an isotropy violating stochastic gravitational wave background
• The primordial curvature perturbation from lattice simulations
• Fast Likelihood-free Reconstruction of Gravitational Wave Backgrounds
• Second-order stochastic theory for self-interacting scalar fields in de Sitter spacetime
• Present and future of CosmoLattice
• Free scalar correlators in de Sitter via the stochastic approach beyond slow roll
• Non-perturbative $\delta N$
• Measuring the anisotropies in astrophysical and cosmological gravitational-wave backgrounds with Taiji and LISA networks
• Group Theoretic Approach to Fermion Production
• On the anisotropies of the cosmological gravitational-wave background from pulsar timing array observations
• Searching for Anisotropy in the Gravitational Wave Background Using the Parkes Pulsar Timing Array
• Supersymmetric hybrid inflation with a light scalar
• Reheating dynamics affects non-perturbative decay of spectator fields
• Equation of state during (p)reheating with trilinear interactions
• Stochastic gravitational wave from graviton bremsstrahlung in inflaton decay into massive spin 3/2 particles
• Estimating the gravitational wave background anisotropy: a Bayesian approach boosted by cross-correlation angular power spectrum
• Reheating constraints on Kähler Moduli Inflation