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arXiv 1703.02576hep-phastro-ph.COgr-qc
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来自宇宙畴壁的引力波研究综述

A review of gravitational waves from cosmic domain walls

Ken'ichi Saikawa

摘要:

在这篇文章中,我们讨论了宇宙学的情况下,不稳定的畴壁形成的早期宇宙和他们的后期湮灭产生了大量的引力波。在描述了长寿命畴壁的宇宙学约束后,我们估计了今天观测到的引力波的典型振幅和频率。我们还审查了粒子物理学的标准模型,预测不稳定的畴壁的形成,可以通过观察遗迹引力波探测可能的扩展。结果表明,最近的脉冲发生器定时阵列和直接检测实验的结果部分排除了相关的参数空间,和一个更广泛的参数空间可以覆盖下一代的引力波天文台。

英文摘要:

In this contribution, we discuss the cosmological scenario where unstable domain walls are formed in the early universe and their late-time annihilation produces a significant amount of gravitational waves. After describing cosmological constraints on long-lived domain walls, we estimate the typical amplitude and frequency of gravitational waves observed today. We also review possible extensions of the standard model of particle physics that predict the formation of unstable domain walls and can be probed by observation of relic gravitational waves. It is shown that recent results of pulser timing arrays and direct detection experiments partially exclude the relevant parameter space, and that a much wider parameter space can be covered by the next generation of gravitational wave observatories.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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