论文标题
Schwarzschild黑洞的准模式公制仿期Chern-Simons理论
Quasinormal modes of Schwarzschild black holes in metric affine Chern-Simons theory
论文作者
论文摘要
我们通过使用同型曲率术语扩大了pontryagin的密度，从而使Chern-Simons在公制的形式主义中重新制定了重力。然后，通过将Chern-Simons术语的耦合推广到（伪） - 扫描场来侵犯后者。我们从背景字段中得出了扭转和非赞誉性的扰动溶液，并描述了Schwarzschild黑洞背景中所得线性化度量和标量场的动力学。然后，通过采用数值技术，我们计算了标量和度量扰动的末尾频谱和延迟尾巴。
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.
