Constraining early dark energy with gravitational waves before recombination
Constraining early dark energy with gravitational waves before recombination
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DOI：
10.1103/physrevd.103.l021301
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发表时间：
2020-08
影响因子：
5
通讯作者：
Zachary J. Weiner;Peter Adshead;J. Giblin
中科院分区：
文献类型：
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作者：
Zachary J. Weiner;Peter Adshead;J. Giblin
我们表明，非微扰衰变的超轻标量到阿贝尔规范玻色子，最近提出的一种可能的解决方案，哈勃紧张，产生的随机背景的引力波的宇宙微波背景的约束。我们模拟了共振暗光子产生和相关的引力波产生的全非线性动力学，发现信号超过了我们考虑的整个参数空间的约束。我们的研究结果表明，早期暗能量衰变产生的引力波可能为这些模型提供了独特的探测。
We show that the nonperturbative decay of ultralight scalars into Abelian gauge bosons, recently proposed as a possible solution to the Hubble tension, produces a stochastic background of gravitational waves which is constrained by the cosmic microwave background. We simulate the full nonlinear dynamics of resonant dark photon production and the associated gravitational-wave production, finding the signals to exceed constraints for the entire parameter space we consider. Our findings suggest that gravitational-wave production from the decay of early dark energy may provide a unique probe of these models.