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arXiv 2203.09209gr-qcastro-ph.HE
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度规仿射Chern-Simons理论中Schwarzschild黑洞的拟正规模

Quasinormal modes of Schwarzschild black holes in metric affine Chern-Simons theory

Flavio Bombacigno

摘要:

我们重新制定的陈-西蒙斯修改的重力度量仿射形式主义,通过扩大庞特里亚金密度位似曲率项恢复投影不变性,而不破坏拓扑。后者则违反促进耦合的陈-西蒙斯项的(伪)-标量场。我们从背景场中导出了挠率和非度规性的微扰解,并描述了在Schwarzschild黑洞背景中线性化度规场和标量场的动力学.然后,我们采用数值方法计算了标量和度量扰动的拟正规模谱和迟时尾。

英文摘要:

We reformulate the Chern-Simons modified gravity in the metric-affine formalism, by enlarging the Pontryagin density with homothetic curvature terms which restore projective invariance without spoiling topologicity. The latter is then violated by promoting the coupling of the Chern-Simons term to a (pseudo)-scalar field. We derive the perturbative solutions for torsion and nonmetricity from the background fields, and we describe the dynamics for the resulting linearized metric and the scalar fields in a Schwarzschild black hole background. Then, by adopting numerical techniques we compute the quasinormal mode spectrum and the late-time tails for scalar and metric perturbations.

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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