论文标题
在修饰的重力中大规模结构的有效现场理论，用于退化高阶标量理论
Effective Field Theory of Large Scale Structure in modified gravity and application to Degenerate Higher-Order Scalar-Tensor theories
论文作者
论文摘要
在修饰的重力中，一环物质功率谱显示出紫外线的差异，如退化高阶标量理论的框架所示。为了解决这个问题，我们将大规模结构的有效领域理论扩展到修改的重力理论。我们发现，新的反对物出现并重新归一化紫外线的差异是在修饰的泊松方程中非线性的自然结果。重新归一化的一环物质功率谱可通过比较观测值来测试修饰的重力理论。
In modified gravity, the one-loop matter power spectrum exhibits an ultraviolet divergence as shown in the framework of the degenerate higher-order scalar-tensor theory. To address this problem, we extend the effective field theory of large scale structure to modified gravity theories. We find that new counterterms appear and renormalize the ultraviolet divergence as a natural consequence of non-linearity in the modified Poisson equation. The renormalized one-loop matter power spectrum is useful to test modified gravity theories by comparing to observations.
