Constraints on primordial curvature perturbations from primordial black hole dark matter and secondary gravitational waves
Constraints on primordial curvature perturbations from primordial black hole dark matter and secondary gravitational waves
Primordial black holes and secondary gravitational waves can be used to probe the small scale physics at very early time. For secondary gravitational waves produced after the horizon reentry, we derive an analytical formula for the time integral of the source and analytical behavior of the time dependence of the energy density of induced gravitational waves is obtained. By proposing a piecewise power law parametrization for the power spectrum of primordial curvature perturbations, we use the observational constraints on primordial black hole dark matter to obtain an upper bound on the power spectrum, and discuss the test of the model with future space based gravitational wave antenna.
Zhu Yi、Fengge Zhang、Yungui Gong、Yizhou Lu
物理学
Zhu Yi,Fengge Zhang,Yungui Gong,Yizhou Lu.Constraints on primordial curvature perturbations from primordial black hole dark matter and secondary gravitational waves[EB/OL].(2019-07-27)[2025-08-02].https://arxiv.org/abs/1907.11896.点此复制
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