Log-periodic gravitational-wave background beyond Einstein gravity
arXiv:2308.05904 · doi:10.1088/1361-6382/ad1123
Abstract
Periodic patterns of logarithmic oscillations can arise in primordial curvature perturbation spectra and in the associated gravitational-wave background via different mechanisms. We show that, in the presence of log oscillations, the spectral shape of the stochastic background has a unique parametrization independent of its physical origin. We also show that this log-periodic modulation can be generated in any scenario beyond Einstein gravity endowed with an approximate discrete scale invariance, a symmetry typical of deterministic fractal spacetimes that could emerge in quantum gravity under certain conditions. We discuss how a log-oscillatory spectral shape arises from concrete inflationary models beyond Einstein gravity and the prospects for detection in Einstein Telescope and other next-generation gravitational-wave observatories. We find that these instruments will be sensitive to log-periodic features if the detection is made with a high signal-to-noise ratio (SNR) and that the error scales as .
arXiv comment28 pages, 3 figures, 1 table. v2: section 3 reorganized and shortened, conclusions expanded, references added; v3: typos corrected
References in corpus (106)
- Observation of Gravitational Waves from a Binary Black Hole Merger
- Planck 2018 results. X. Constraints on inflation
- Hierarchies from Fluxes in String Compactifications
- Tests of general relativity with GW150914
- The NANOGrav 15-year Data Set: Evidence for a Gravitational-Wave Background
- Search for an isotropic gravitational-wave background with the Parkes Pulsar Timing Array
- Science Case for the Einstein Telescope
- Searching for the nano-Hertz stochastic gravitational wave background with the Chinese Pulsar Timing Array Data Release I
- The second data release from the European Pulsar Timing Array III. Search for gravitational wave signals
- BICEP / Keck XIII: Improved Constraints on Primordial Gravitational Waves using Planck, WMAP, and BICEP/Keck Observations through the 2018 Observing Season
- Symmetries and Strings in Field Theory and Gravity
- The Trans-Planckian Problem of Inflationary Cosmology
- Gravitational Wave Spectrum Induced by Primordial Scalar Perturbations
- Detecting a stochastic background of gravitational radiation: Signal processing strategies and sensitivities
- Theoretical Physics Implications of the Binary Black-Hole Mergers GW150914 and GW151226
- The cosmological gravitational wave background from primordial density perturbations
- Dimensional Reduction in Quantum Gravity
- Discrete scale invariance and complex dimensions
- Spectral Dimension of the Universe
- Upper Limits on the Isotropic Gravitational-Wave Background from Advanced LIGO's and Advanced Virgo's Third Observing Run
- Relativistic second-order perturbations of the Einstein-de Sitter Universe
- Oscillations in the CMB from Axion Monodromy Inflation
- Science with the Einstein Telescope: a comparison of different designs
- Prospects for Fundamental Physics with LISA
- A note on inflation and transplanckian physics
- Features of heavy physics in the CMB power spectrum
- Cosmology with the Laser Interferometer Space Antenna
- Inflationary perturbations from a potential with a step
- New Horizons for Fundamental Physics with LISA
- Fractal universe and quantum gravity
- Stochastic Gravitational Wave Backgrounds
- Generation and Characterization of Large Non-Gaussianities in Single Field Inflation
- Inflation as a Probe of Short Distance Physics
- CMB polarization from secondary vector and tensor modes
- General Relativistic Dynamics of Irrotational Dust: Cosmological Implications
- Fractal Spacetime Structure in Asymptotically Safe Gravity
- Tensor Perturbations in Inflationary Models as a Probe of Cosmology
- A generic estimate of trans-Planckian modifications to the primordial power spectrum in inflation
- Testing modified gravity at cosmological distances with LISA standard sirens
- Constraining Lorentz-violating, Modified Dispersion Relations with Gravitational Waves
- Constraints on symmetry from holography
- On the Dependence of the Spectra of Fluctuations in Inflationary Cosmology on Trans-Planckian Physics
- Probing reheating temperature of the universe with gravitational wave background
- Imprints of Short Distance Physics On Inflationary Cosmology
- Seeding primordial black holes in multifield inflation
- Fractal properties of quantum spacetime
- A Mock Data Challenge for the Einstein Gravitational-Wave Telescope
- Mass hierarchies and non-decoupling in multi-scalar field dynamics
- Improved reconstruction of a stochastic gravitational wave background with LISA
- Precision calculations of the gravitational wave background spectrum from inflation
- Oscillations in the stochastic gravitational wave background from sharp features and particle production during inflation
- Dimension and Dimensional Reduction in Quantum Gravity
- Spontaneous Dimensional Reduction in Short-Distance Quantum Gravity?
- Folded Resonant Non-Gaussianity in General Single Field Inflation
- Blue-tilted Tensor Spectrum and Thermal History of the Universe
- Effective Field Theory and Decoupling in Multi-field Inflation: An Illustrative Case Study
- Duality Cascade in Brane Inflation
- Influence of heavy modes on perturbations in multiple field inflation
- Cosmological Perturbations from a New-Physics Hypersurface
- Black hole formation from a general quadratic action for inflationary primordial fluctuations
- Testing Chern-Simons Modified Gravity with Gravitational-Wave Detections of Extreme-Mass-Ratio Binaries
- Probing Primordial Features with the Stochastic Gravitational Wave Background
- (Small) Resonant non-Gaussianities: Signatures of a Discrete Shift Symmetry in the Effective Field Theory of Inflation
- Models of the Primordial Standard Clock
- Standard Clock in Primordial Density Perturbations and Cosmic Microwave Background
- Wiggly Whipped Inflation
- Whipped inflation
- Multifractional theories: an unconventional review
- Warp Features in DBI Inflation
- Drifting Oscillations in Axion Monodromy
- Multi-scale gravity and cosmology
- The Effective Field Theory of Inflation Models with Sharp Features
- Fingerprints of Primordial Universe Paradigms as Features in Density Perturbations
- Correlation analysis of stochastic gravitational wave background around 0.1-1Hz
- Features of the inflaton potential and the power spectrum of cosmological perturbations
- Quantum gravity and gravitational-wave astronomy
- Model Independent Signatures of New Physics in the Inflationary Power Spectrum
- Measuring the propagation speed of gravitational waves with LISA
- Dimensional flow in discrete quantum geometries
- Gravity in the infrared and effective nonlocal models
- Comments on Graviton Propagation in Light of GW150914
- Oscillatory features in the curvature power spectrum after a sudden turn of the inflationary trajectory
- What gravity waves are telling about quantum spacetime
- Stochastic gravitational-wave background in quantum gravity
- Gravitational-wave luminosity distance in quantum gravity
- Multiscale spacetimes from first principles
- Primordial features and Planck polarization
- Untangling features in the primordial spectra
- Sudden variations in the speed of sound during inflation: features in the power spectrum and bispectrum
- Multifractional theories: an updated review
- Cosmic microwave background and inflation in multi-fractional spacetimes
- Stochastic gravitational wave background: methods and Implications
- Primordial spectra from sudden turning trajectory
- Primordial Standard Clock Models and CMB Residual Anomalies
- Complex dimensions and their observability
- Forecast Constraints on Inflation from Combined CMB and Gravitational Wave Direct Detection Experiments
- ABC of multi-fractal spacetimes and fractional sea turtles
- Towards the map of quantum gravity
- Sharp turns in axion monodromy: primordial black holes and gravitational waves
- Emergence of Spacetime in a restricted Spin-foam model
- Primordial Black Holes and Gravitational Waves in Multi-Axion-Chern-Simons Inflation
- Angular Correlation Functions for Models with Logarithmic Oscillations
- Quantum field theory with varying couplings
- The effect of multiple features on the power spectrum in two-field inflation
- Scale anomaly of a Lifshitz scalar: a universal quantum phase transition to discrete scale invariance
- Curvature effects in the spectral dimension of spin foams