论文标题
有限的修饰重力
Limited Modified Gravity
论文作者
论文摘要
我们系统地评估了一些特定理论或观察条件的重力的限制案例。该框架包括众所周知的标量张力重力，没有滑动重力，也没有运行重力，我们将其扩展到三个新限制：仅跑步，仅光，只有生长重力。这些限制提供了简化，可以更深入地了解修饰的重力，包括证明对光和物质的重力影响在其与一般相对性的偏差中可能具有相反的迹象。我们还显示了不同宇宙结构增长率$fσ_8$的观察性预测以及引力波标准警笛声性与光子标准蜡烛光度距离关系的比例，定义了一种新的统计$ d_g $，强调其互补性和区分模型的能力。
We systematically assess several limiting cases of modified gravity, where particular theoretical or observational conditions hold. This framework includes the well known scalar-tensor gravity and No Slip Gravity and No Run Gravity, and we extend it to three new limits: Only Run, Only Light, and Only Growth Gravities. These limits give simplifications that allow deeper understanding of modified gravity, including demonstration that gravitational effects on light and matter can have opposite signs in their deviation from general relativity. We also show observational predictions for the different cosmic structure growth rates $fσ_8$ and the ratio of gravitational wave standard siren luminosity to photon standard candle luminosity distance relations, defining a new statistic $D_G$ that emphasizes their complementarity and ability to distinguish models.
