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arXiv 2408.04004gr-qcastro-ph.COhep-th
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非局域 Starobinsky 暴涨中的次级引力波

Secondary Gravitational Waves in Non-local Starobinsky inflation

Andrea Addazi, Alexey S. Koshelev, Shi Pi, Anna Tokareva

AI总结:

本文研究无限阶导数引力修正对早期宇宙引力波背景的影响,发现非局域 Starobinsky 暴涨中无限复质量态会增强标量扰动功率谱,并预言可通过未来干涉仪探测非传统蓝倾斜引力波谱来检验该理论。

摘要:

我们展示了引力的无限阶导数修正如何影响早期宇宙产生的引力波随机背景。固定在 Minkowski 时空上的无鬼场理论的一般性质是,当考虑其他经典背景时,会出现无限多个复质量态。我们证明这些附加态会增强暴涨期间产生的标量扰动的功率谱。当前和未来的天基与地基干涉仪为无限阶导数引力作用量提供了间接检验方法,从而能够探索新的参数空间。特别地,我们识别出非传统的蓝倾斜引力波谱,为未来检验无限阶导数量子引力提出了一种新方法。

英文摘要:

We show how infinite derivative modifications of gravity impact on the stochastic background of Gravitational Waves from early Universe. The generic property of the ghost-free theory fixed on Minkowski space-time is the emergence of an infinite number of complex mass states when other classical backgrounds are considered. These additional states are shown to enhance the power spectrum of scalar perturbations generated during inflation. Current and future space-based and terrestrial interferometers offer indirect testing methods for the infinite derivative gravity action, enabling the exploration of new parameter spaces. In particular, we identify unconventional blue-tilted Gravitational Wave spectra, presenting a novel approach for testing infinite derivative quantum gravity in the future.

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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