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arXiv 2401.02409astro-ph.COgr-qchep-th
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暗物质领域壁产生的引力波

Gravitational waves from dark domain walls

University of Oslo(奥斯陆大学);Czech Academy of Sciences(捷克科学院)

Øyvind Christiansen, Julian Adamek, Farbod Hassani, David F. Mota

AI总结:

本文首次模拟了暗部门动态如何通过领域壁产生随机引力波,为理解暗物质和暗能量提供了新的研究途径。

摘要:

在宇宙大部分历史中,我们的宇宙演化是由一个被称为'暗部门'的物理所支配的,这个部门由暗物质和暗能量组成,其性质只能以简略的方式理解。这些组成部分的影响仅通过重力力来中介,这意味着对它们本质的理解必须从重力现象中获得。引力波天文学的出现已经革新了黑洞天文学领域,并为宇宙源的发现打开了新的窗口。相关例子包括拓扑缺陷,如领域壁或宇宙弦,它们是相变残余。在这里,我们首次模拟了宇宙结构的形成,其中暗部门的动力学引入了领域壁作为晚期宇宙中随机引力波的来源。我们详细研究了引力波谱如何受模型属性的影响,并将其结果扩展到与最近关于随机引力波背景的证据相关的尺度。我们相对论性的场动力学实现为下一代引力实验的最佳利用铺平了道路。

英文摘要:

For most of cosmic history, the evolution of our Universe has been governed by the physics of a 'dark sector', consisting of dark matter and dark energy, whose properties are only understood in a schematic way. The influence of these constituents is mediated exclusively by the force of gravity, meaning that insight into their nature must be gleaned from gravitational phenomena. The advent of gravitational-wave astronomy has revolutionised the field of black hole astrophysics, and opens a new window of discovery for cosmological sources. Relevant examples include topological defects, such as domain walls or cosmic strings, which are remnants of a phase transition. Here we present the first simulations of cosmic structure formation in which the dynamics of the dark sector introduces domain walls as a source of stochastic gravitational waves in the late Universe. We study in detail how the spectrum of gravitational waves is affected by the properties of the model, and extrapolate the results to scales relevant to the recent evidence for a stochastic gravitational wave background. Our relativistic implementation of the field dynamics paves the way for optimal use of the next generation of gravitational experiments to unravel the dark sector.

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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