论文标题
二次重力的两种竞争大型模式的主导模式
The dominating mode of two competing massive modes of quadratic gravity
论文作者
论文摘要
在过去的二十年中，理论和观察水平都出现了改变重力的动机。 $ f（r）$和Chern-Simons Gravity受到了更多的关注，因为它们是最简单的概括。但是，$ f（r）$和Chern-Simons重力仅包含额外的标量（SPIN-0）自由度，因此，不包括其他修改后的重力理论。相比之下，二次重力（也称为静态重力）是对4-D一般相对论的最通用的二阶修饰，并且包含$ F（R）$和Chern-Simons Gravity中不存在的巨大的Spin-2模式。使用两个不同的物理设置$ - $ - 通过探测器测量的重力波能量升华以及在残留黑洞的时空上发射的重力辐射的反应 - 我们证明，大量的Spin-2模式比Spin-0模式携带更多的能量。我们的分析表明，对中间质量黑洞的效果是明显的，这是丽莎的主要目标。
Over the last two decades, motivations for modified gravity have emerged from both theoretical and observational levels. $f(R)$ and Chern-Simons gravity have received more attention as they are the simplest generalization. However, $f(R)$ and Chern-Simons gravity contain only an additional scalar (spin-0) degree of freedom and, as a result, do not include other modes of modified theories of gravity. In contrast, quadratic gravity (also referred to as Stelle gravity) is the most general second-order modification to 4-D general relativity and contains a massive spin-2 mode that is not present in $f(R)$ and Chern-Simons gravity. Using two different physical settings $-$ the gravitational wave energy-flux measured by the detectors and the backreaction of the emitted gravitational radiation on the spacetime of the remnant black hole $-$ we demonstrate that massive spin-2 mode carries more energy than the spin-0 mode. Our analysis shows that the effects are pronounced for intermediate-mass black holes, which are prime targets for LISA.
