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astro-ph.CO2024★ 7 cited
Anisotropies of cosmological gravitational wave backgrounds in non-flat spacetime
Rong-Gen Cai, Shao-Jiang Wang, Zi-Yan Yuwen +1
Recent reports of stochastic gravitational wave background from four independent pulsar-timing-array collaborations have renewed the interest in the cosmological gravitational wave…
astro-ph.CO2024★ 8 cited
Multiple peaks in gravitational waves induced from primordial curvature perturbations with non-Gaussianity
Xiang-Xi Zeng, Rong-Gen Cai, Shao-Jiang Wang
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…