Cosmological backgrounds of gravitational waves
@article{Caprini2018CosmologicalBO, title={Cosmological backgrounds of gravitational waves}, author={Chiara Caprini and Daniel G. Figueroa}, journal={Classical and Quantum Gravity}, year={2018} }
Gravitational wave observations have a great potential for probing cosmology. Here we concentrate on the early universe, and review proposed sources that can lead to cosmological backgrounds of gravitational waves, many of them within the reach of near-future gravitational wave detectors. We start by defining gravitational waves in a cosmological setting and presenting the reasons why early universe sources give rise to stochastic gravitational wave backgrounds. We recap the current…
Figures and Tables from this paper
334 Citations
Stochastic gravitational wave backgrounds.
- PhysicsReports on progress in physics. Physical Society
- 2019
This review will summarize the current state of research of the stochastic background, from the sources of these gravitational waves to the current methods used to observe them.
Anisotropies and non-Gaussianity of the cosmological gravitational wave background
- PhysicsPhysical Review D
- 2019
The Stochastic Gravitational Wave Background (SGWB) is expected to be a key observable for Gravitational Wave (GW) interferometry. Its detection will open a new window on early universe cosmology and…
Polarization of a stochastic gravitational wave background through diffusion by massive structures
- PhysicsPhysical Review D
- 2019
The geometric optics approximation traditionally used to study the propagation of gravitational waves on a curved background, breaks down in the vicinity of compact and extended astrophysical…
CLASS_GWB: robust modeling of the astrophysical gravitational wave background anisotropies
- Physics, Geology
- 2021
Gravitational radiation offers a unique possibility to study the large-scale structure of the Universe, gravitational wave sources and propagation in a completely novel way. Given that gravitational…
Probing the Universe through the stochastic gravitational wave background
- PhysicsJournal of Cosmology and Astroparticle Physics
- 2018
Stochastic gravitational wave backgrounds, predicted in many models of the early universe and also generated by various astrophysical processes, are a powerful probe of the Universe. The spectral…
Using a primordial gravitational wave background to illuminate new physics
- PhysicsPhysical Review D
- 2019
A primordial spectrum of gravitational waves serves as a backlight to the relativistic degrees of freedom of the cosmological fluid. Any change in the particle physics content, due to a change of…
Probing the pre-BBN universe with gravitational waves from cosmic strings
- PhysicsJournal of High Energy Physics
- 2019
A bstractMany motivated extensions of the Standard Model predict the existence of cosmic strings. Gravitational waves originating from the dynamics of the resulting cosmic string network have the…
Gravitational waves from bubble collisions in FLRW spacetime
- PhysicsJournal of High Energy Physics
- 2022
Abstract
Stochastic gravitational wave background (SGWB) is a promising tool to probe the very early universe where the standard model of particle physics and cosmology are connected closely. As a…
Gravitational-wave physics and astronomy in the 2020s and 2030s
- Physics, GeologyNature Reviews Physics
- 2021
The 100 years since the publication of Albert Einstein’s theory of general relativity saw significant development of the understanding of the theory, the identification of potential astrophysical…
Primordial gravitational waves in nonstandard cosmologies
- PhysicsPhysical Review D
- 2019
Assuming that inflation is followed by a phase where the energy density of the Universe is dominated by a component with a general equation of state, we evaluate the spectrum of primordial…
References
SHOWING 1-10 OF 988 REFERENCES
Gravitational waves from Abelian gauge fields and cosmic strings at preheating
- Physics
- 2010
Primordial gravitational waves provide a very important stochastic background that could be detected soon with interferometric gravitational wave antennas or indirectly via the induced patterns in…
The Gravitational-Wave Physics
- Physics, Education
- 2017
The direct detection of gravitational wave by Laser Interferometer Gravitational-Wave Observatory indicates the coming of the era of gravitational-wave astronomy and gravitational-wave cosmology. It…
Stochastic gravitational waves from cosmic string loops in scaling
- Physics
- 2017
If cosmic strings are formed in the early universe, their associated loops emit gravitational waves during the whole cosmic history and contribute to the stochastic gravitational wave background at…
Cosmic archaeology with gravitational waves from cosmic strings
- PhysicsPhysical Review D
- 2018
Cosmic strings are generic cosmological predictions of many extensions of the Standard Model of particle physics, such as a $U(1)^\prime$ symmetry breaking phase transition in the early universe or…
TASI lectures on gravitational waves from the early universe
- Physics
- 2003
These lectures discuss how the direct detection of gravitational waves can be used to probe the very early Universe. We review the main cosmological mechanisms which could have produced relic…
Gravitational-wave cosmology across 29 decades in frequency
- Physics
- 2015
Quantum fluctuations of the gravitational field in the early Universe, amplified by inflation, produce a primordial gravitational-wave background across a broad frequency band. We derive constraints…
Breaking a Dark Degeneracy with Gravitational Waves
- Physics
- 2015
We identify a scalar-tensor model embedded in the Horndeski action whose cosmological background and linear scalar fluctuations are degenerate with the concordance cosmology. The model admits a…
Measurement of parity violation in the early universe using gravitational-wave detectors
- Physics
- 2013
Upper Limits on the Stochastic Gravitational-Wave Background from Advanced LIGO's First Observing Run.
- PhysicsPhysical review letters
- 2017
This work performs a search for the isotropic stochastic gravitational-wave background using data from Advanced Laser Interferometer Gravitational Wave Observatory's (aLIGO) first observing run, and constrain the dimensionless energy density of gravitational waves to be Ω_{0}<1.7×10^{-7} with 95% confidence.