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arXiv 2502.20185gr-qchep-th
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基于修正 Teukolsky 方程的超越广义相对论的潮汐洛夫数

Love numbers beyond GR from the modified Teukolsky equation

Pablo A. Cano

AI总结:

本文利用修正 Teukolsky 方程在广义相对论有效场论扩展中首次系统计算非旋转黑洞的全部潮汐洛夫数,包括新发现的混合型洛夫数,为旋转黑洞研究奠定基础。

摘要:

我们在广义相对论的有效场论扩展中,获得了非旋转黑洞的完整潮汐洛夫数集合。我们利用最近引入的修正 Teukolsky 方程来实现这一结果,该方程描述了该理论中黑洞的扰动。我们展示了如何以系统且规范不变的方式识别洛夫数及其 beta 函数,并在必要时对角量子数 $\ell$ 应用解析延拓。我们观察到存在三种类型的洛夫数:电型、磁型,以及与宇称破缺理论相关的“混合”型,后者是我们首次在此识别出的。修正 Teukolsky 方程被证明非常有用,因为它使我们能够在一个统一框架中获得所有不同类型的洛夫数。我们将结果与先前利用 Regge-Wheeler-Zerilli 方程计算洛夫数的文献进行了比较,发现完全一致。本文引入的方法为计算超越广义相对论的旋转黑洞洛夫数铺平了道路。

英文摘要:

We obtain the full set of tidal Love numbers of non-rotating black holes in an effective field theory extension of general relativity. We achieve our results using a recently introduced modified Teukolsky equation that describes the perturbations of black holes in this theory. We show how to identify the Love numbers and their beta functions in a systematic and gauge invariant way, applying analytic continuation on the angular number $\ell$ when necessary. We observe that there are three types of Love numbers: electric, magnetic, and a ``mixing'' type, associated to parity-breaking theories, that we identify here for the first time. The modified Teukolsky equation proves to be very useful as it allows us to obtain all the different Love numbers in a unified framework. We compare our results with previous literature that utilized the Regge-Wheeler-Zerilli equations to compute Love numbers, finding perfect agreement. The method introduced here paves the way towards the computation of Love numbers of rotating black holes beyond general relativity.

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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