论文标题
EFT动机重力的非线性/非涉及治疗
Nonlinear/non-iterative treatment of EFT-motivated gravity
论文作者
论文摘要
我们研究了对一般相对性的较高导数扩展，并提出了完全非线性/非扰动处理，以构建初始数据并研究其在耦合到无质量标量场时在球形对称性中的动力学行为。对于初始数据，我们将获得的解决方案与依赖扰动（或迭代）方法的替代处理方法进行了比较。对于此类数据的未来演变，我们实施了一种最近引入的方法，该方法解决了较高衍生物带来的数学病理。我们的解决方案证明了意外现象的存在 - 从一般相对论的角度看时，并且在标量场的准正常模式行为中偏离了标量场从黑洞散射的一般相对论。
We study a higher derivative extension to General Relativity and present a fully nonlinear/non-perturbative treatment to construct initial data and study its dynamical behavior in spherical symmetry when coupled to a massless scalar field. For initial data, we compare the obtained solutions with those from alternative treatments that rely on a perturbative (or iterative) approach. For the future evolution of such data, we implement a recently introduced approach which addresses mathematical pathologies brought in by the higher derivatives. Our solutions demonstrate the presence of unexpected phenomena -when seen from the lense of General Relativity, as well as departures from General Relativity in the quasi-normal mode behavior of the scalar field scattering off the black hole.
