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<p>Domain walls represent two-dimensional topological defects that emerge from the spontaneous breaking of discrete symmetries in various new physics models. In this study, we undertake the first calculation of gravitational waves produced by scalar perturbations generated from the domain wall network. Our findings indicate that the gravitational wave spectrum is notably distinct from that of other sources. This opens up a promising avenue for future gravitational wave experiments aimed at exploring the role of domain walls in the early universe.</p>

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Scalar-induced gravitational wave from domain wall perturbation

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年5月13日

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  • Bo-Qiang Lu

摘要

Domain walls represent two-dimensional topological defects that emerge from the spontaneous breaking of discrete symmetries in various new physics models. In this study, we undertake the first calculation of gravitational waves produced by scalar perturbations generated from the domain wall network. Our findings indicate that the gravitational wave spectrum is notably distinct from that of other sources. This opens up a promising avenue for future gravitational wave experiments aimed at exploring the role of domain walls in the early universe.