Log-dependent slope of scalar induced gravitational waves in the infrared regions
Abstract
We analytically calculate the scalar induced gravitational waves (SIGWs) and find a log-dependent slope of SIGW in the infrared regions (f<fc), namely nGW(f)=3-2/(fc/f), and nGW(f)=2-2/(fc/f) near the peak if the power spectrum of scalar curvature perturbation is quite narrow, where fc is roughly the frequency at the peak of SIGW. Such a log-dependent slope can be taken as a new template for distinguishing SIGW from other sources.
0
Turn this paper into a full lesson
ArcXiv compiles a staged curriculum from this paper: 8-12 lessons across beginner → advanced, synthesised section guides, visuals, flashcards, a quiz, exercises, and on-demand deep dives per section. Grounded in the abstract, never invented.