English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Primordial black holes (PBHs) are supposed to form through the gravitationalcollapse of regions with large density fluctuations. The formation of PBHsinevitably leads to the emission of scalar-induced gravitational wave (SIGW)signals, offering a unique opportunity to test the hypothesis of PBHs as aconstituent of dark matter (DM). Previous studies have calculated the energyspectrum of SIGWs in local-type non-Gaussian models, primarily considering thecontributions from the $F_{\mathrm{NL}}$-order or the $G_{\mathrm{NL}}$-orderwhile neglecting connected diagrams. In this study, we extend the previous workby (i) considering the full contribution of non-Gaussian diagrams up to the$G_{\mathrm{NL}}$-order; (ii) deriving the generic scaling of the SIGW energyspectrum in the infrared region. We derive semi-analytical results applicableto arbitrary primordial power spectra and numerically evaluate the energyspectrum of SIGWs for a log-normal power spectrum.

Full analysis of the scalar-induced gravitational waves for the curvature perturbation with local-type non-Gaussianities