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arXiv 2203.00693hep-phastro-ph.CO
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来自不完整暴胀相变的引力波

Gravitational Waves from Incomplete Inflationary Phase Transitions

Joel Barir, Michael Geller, Chen Sun, Tomer Volansky

AI总结:

本研究探讨暴胀期间不完整一阶相变的可观测效应,指出该过程产生的不均匀性功率谱会通过非线性效应形成具有独特特征的随机引力波背景,或可被未来宽频实验探测,为揭示暴胀动力学提供新途径。

摘要:

我们研究了暴胀期间不完整一阶相变的可观测效应。在这类相变中,成核的气泡不会发生逾渗,而是会持续产生,直到再加热阶段开始。这一过程会形成具有独特功率谱的不均匀性,该功率谱同时取决于相变物理过程与暴胀动力学。当该谱在视界重新进入时,会通过非线性效应产生引力波。据预测,这种随机引力波背景具有独特的特征,有望被覆盖宽频率范围的未来实验探测到。发现这类引力波信号将有助于阐明暴胀的详细动力学过程。

英文摘要:

We study the observable implications of an incomplete first order phase transition during inflation. In such a phase transition, the nucleated bubbles do not percolate and instead are continuously produced until the onset of reheating. The process creates an inhomogeneity with a distinct power spectrum that depends on both the physics of the phase transition and the inflationary dynamics. Upon horizon re-entry, this spectrum generates gravitational waves through non-linear effects. This stochastic gravitational wave background is predicted to have unique signatures that may be detectable by future experiments spanning a wide frequency range. The discovery of such a gravitational wave signal would shed a light on the detailed dynamics of inflation.

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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