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Recent reports of stochastic gravitational wave background from four independent pulsar-timing-array collaborations have renewed the interest in the cosmological gravitational wave background (CGWB), which is expected to open a new window into the ea
Externí odkaz:
http://arxiv.org/abs/2410.17721
Publikováno v:
JCAP 10 (2024) 045
First-order primordial curvature perturbations are known to induce gravitational waves at the second-order, which can in turn probe the small-scale curvature perturbations near the end of the inflation. In this work, we extend the previous analysis i
Externí odkaz:
http://arxiv.org/abs/2406.05034