arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1910.04480gr-qcastro-ph.CO
收藏

标度不变引力与黑洞衰荡

Scale Invariant Gravity and Black Hole Ringdown

Pedro G. Ferreira, Oliver J. Tattersall

摘要:

引力的标度不变理论对宇宙的早期和晚期时间加速度给出了令人信服的解释。与大多数标量-张量理论不同,第五种力不存在,因此似乎不可能将标度不变引力与广义相对论区分开来。我们证明了Schwarschild-de Sitter黑洞的衰荡可能具有一组具有标度不变引力特征的质量模。原则上,这些新模式可以用来区分尺度不变引力和广义相对论。在实践中,我们讨论了产生这些新的大质量模式的障碍,以及它们在未来的引力波实验中的可探测性,但也推测了它们在克尔黑洞中的作用。

英文摘要:

Scale invariant theories of gravity give a compelling explanation to the early and late time acceleration of the Universe. Unlike most scalar-tensor theories, fifth forces are absent and it would therefore seem impossible to distinguish scale invariant gravity from general relativity. We show that the ringdown of a Schwarschild-de Sitter black hole may have a set of massive modes which are characteristic of scale invariant gravity. In principle these new modes can be used to distinguish scale invariant gravity from general relativity. In practice, we discuss the obstacles to generating these new massive modes and their detectability with future gravitational wave experiments but also speculate on their role in Kerr black holes.

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。

↑