The cosmological gravitational wave background from primordial density perturbations

Abstract

We discuss the gravitational wave background generated by primordial density perturbations evolving during the radiation era. At second-order in a perturbative expansion, density fluctuations produce gravitational waves. We calculate the power spectra of gravitational waves from this mechanism, and show that, in principle, future gravitational wave detectors could be used to constrain the primordial power spectrum on scales vastly different from those currently being probed by large-scale structure. As examples we compute the gravitational wave background generated by both a power-law spectrum on all scales, and a delta-function power spectrum on a single scale.

8 Pages

References in corpus (20)

• 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
• Second-Order Cosmological Perturbations from Inflation
• Detecting the Cosmic Gravitational Wave Background with the Big Bang Observer
• Relativistic second-order perturbations of the Einstein-de Sitter Universe
• Relic gravitational waves produced after preheating
• A limit on the detectability of the energy scale of inflation
• Improved Calculation of the Primordial Gravitational Wave Spectrum in the Standard Model
• CMB polarization from secondary vector and tensor modes
• General Relativistic Dynamics of Irrotational Dust: Cosmological Implications
• Detecting a gravitational-wave background with next-generation space interferometers
• Second-order Perturbations of the Friedmann World Model
• Stochastic Gravitational Wave Production After Inflation
• Second-order Gauge Invariant Cosmological Perturbation Theory: -- Einstein equations in terms of gauge invariant variables --
• Unified treatment of cosmological perturbations from super-horizon to small scales
• Nonlinear Inflaton Fragmentation after Preheating
• Gauge-invariant Formulation of the Second-order Cosmological Perturbations
• Cosmological Constraints from Primordial Black Holes
• The Preheating - Gravitational Wave Correspondence
• Stochastic gravitational wave background from cold dark matter halos

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• Gravitational Waves from a Gauge Field Non-minimally Coupled to Gravity
• Sound Speed Resonance of Gravitational Waves in Gauss-Bonnet-coupled inflation
• Gravitational waves from primordial black hole dominance: The effect of inflaton decay rate
• Probing the equation of state of neutron stars with captured primordial black holes
• Scalar-induced gravitational wave from domain wall perturbation
• Study of primordial non-Gaussianity $f_{\mathrm{NL}}$ and $g_{\mathrm{NL}}$ with the cross-correlations between the scalar-induced gravitational waves and the cosmic microwave background
• Theoretical Radio Signals from Radio-Band Gravitational Waves Converted from the Neutron Star Magnetic Field
• Search for a Gravitational-Wave Background from Sound Speed Resonance from Advanced LIGO and Advanced Virgo's First Three Observing Runs
• Scalar-induced gravitational waves in spatially covariant gravity
• Constant-roll inflation and primordial black holes within Barrow entropic framework
• Comprehensive analysis of dissipative effects in the induced gravitational waves
• Unique gravitational wave signatures of GLPV scalar-tensor theories
• Inflationary $\alpha$-Attractor Models with Singular Derivative of Potential
• Primordial black holes and induced gravitational waves from localized features in DBI inflation
• The Quantum Origin of Cosmic Structure
• Short note on second-order gauge-invariant cosmological perturbation theory
• Self-resonance during preheating: The case of $\alpha$-attractor models
• The future of cosmology and the role of non-linear perturbations
• Constraining scotogenic dark matter and primordial black holes using gravitational waves
• Observable Gravitational Wave Strain at Second Order
• On the four-dimensional effective theories in brane-worlds
• Linear perturbations of an exact gravitational wave in the Bianchi IV universe
• Flattened bispectrum of the scalar-induced gravitational waves
• Covariant transverse-traceless projection for secondary gravitational waves
• The role of longitudinal polarizations in Horndeski and macroscopic gravity: Introducing gravitational plasmas
• Circularly polarized gravitational waves from parity-violating scalar-tensor theory
• A non-perturbative framework for N-point functions of locally non-Gaussian fields
• Kination cosmology from scalar fields and gravitational-wave signatures
• Stochastic gravitational wave background from the collisions of dark matter halos
• Signatures of Primordial Gravitational Waves on the Large-Scale Structure of the Universe
• Constraining the inflaton potential with gravitational waves from oscillons
• Primordial black holes and scalar induced gravitational waves from sound speed resonance in non-minimal derivative coupling inflation model
• Primordial black holes from D-parity breaking in SO(10) grand unified theory
• Measuring the speed of scalar induced gravitational waves from observations
• Gravitational waves from resonant amplification of curvature perturbations during inflation
• Gravitational Waves from Gauge Quanta Produced during Inflation
• Primordial gravitational waves from excited states
• Second Order perturbation Theory: A covariant approach involving a barotropic equation of state
• Bispectrum of induced gravitational waves in the poltergeist mechanism
• Cosmological perturbation theory with trinity of scalar fields
• Purely quadratic non-Gaussianity from tachyonic instability: Primordial black holes and scalar-induced gravitational waves
• Secondary gravitational waves against a strong gravitational wave in the Bianchi VI universe
• Correlating Gravitational Wave and Gamma-ray Signals from Primordial Black Holes
• Inflationary phase transitions in the early Universe: A Bayesian study with space-based gravitational-wave detectors
• High Sensitivity Methodologies to Detect Radio Band Gravitational Waves