Next Article in Journal
Beta Equilibrium under Neutron Star Merger Conditions
Next Article in Special Issue
PBH Formation from Spherically Symmetric Hydrodynamical Perturbations: A Review
Previous Article in Journal
Multimodal Analysis of Gravitational Wave Signals and Gamma-Ray Bursts from Binary Neutron Star Mergers

Scalar Induced Gravitational Waves Review

INFN Sezione di Padova, I-35131 Padova, Italy
Academic Editor: Cristiano Germani
Universe 2021, 7(11), 398;
Received: 13 September 2021 / Revised: 16 October 2021 / Accepted: 19 October 2021 / Published: 21 October 2021
(This article belongs to the Special Issue Primordial Black Holes from Inflation)
We provide a review on the state-of-the-art of gravitational waves induced by primordial fluctuations, so-called induced gravitational waves. We present the intuitive physics behind induced gravitational waves and we revisit and unify the general analytical formulation. We then present general formulas in a compact form, ready to be applied. This review places emphasis on the open possibility that the primordial universe experienced a different expansion history than the often assumed radiation dominated cosmology. We hope that anyone interested in the topic will become aware of current advances in the cosmology of induced gravitational waves, as well as becoming familiar with the calculations behind. View Full-Text
Keywords: induced gravitational waves; primordial black holes; early universe; inflation induced gravitational waves; primordial black holes; early universe; inflation
Show Figures

Figure 1

MDPI and ACS Style

Domenech, G. Scalar Induced Gravitational Waves Review. Universe 2021, 7, 398.

AMA Style

Domenech G. Scalar Induced Gravitational Waves Review. Universe. 2021; 7(11):398.

Chicago/Turabian Style

Domenech, Guillem. 2021. "Scalar Induced Gravitational Waves Review" Universe 7, no. 11: 398.

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

Back to TopTop