Black hole ringdown as a probe for dark energy
Black hole ringdown as a probe for dark energy
复制标题
黑洞振铃作为暗能量探测器
DOI：
10.1103/physrevd.101.084049
复制
发表时间：
2019
影响因子：
5
通讯作者：
L. G. Trombetta
中科院分区：
文献类型：
--
作者：
J. Noller;Luca Santoni;E. Trincherini;L. G. Trombetta
在假设一个动态标量场是负责目前的宇宙加速，我们探讨了探测其物理在黑洞合并过程中的引力波干涉仪的可能性。保持不可知论的微观物理，我们使用有效的场论方法来描述标量动力学。我们调查的情况下，其中一些较高的导数运营商，这是高度抑制宇宙尺度，而不是成为重要的黑洞的典型距离。如果耦合到高斯-邦纳算子是其中之一，标量场的非平凡背景轮廓可以来源于黑洞周围，导致潜在的大量“头发”。反过来，这可能导致时空几何的相当大的修改或标量和引力扰动之间的混合。这两种效应最终都将转化为准简正模谱的修改，其方式也对除了标量背景源之外的其他算子敏感。因此，在观测到的光谱中存在偏离广义相对论预测的现象可以作为暗能量物理学的一个窗口。
Under the assumption that a dynamical scalar field is responsible for the current acceleration of the Universe, we explore the possibility of probing its physics in black hole merger processes with gravitational wave interferometers. Remaining agnostic about the microscopic physics, we use an effective field theory approach to describe the scalar dynamics. We investigate the case in which some of the higher derivative operators, that are highly suppressed on cosmological scales, instead become important on typical distances for black holes. If a coupling to the Gauss-Bonnet operator is one of them, a non-trivial background profile for the scalar field can be sourced in the surroundings of the black hole, resulting in a potentially large amount of "hair". In turn, this can induce sizeable modifications to the spacetime geometry or a mixing between the scalar and the gravitational perturbations. Both effects will ultimately translate into a modification of the quasi-normal mode spectrum in a way that is also sensitive to other operators besides the one sourcing the scalar background. The presence of deviations from the predictions of general relativity in the observed spectrum can therefore serve as a window onto dark energy physics.
影响因子：
5
作者：
O. Tattersall;P. Ferreira
通讯作者：
O. Tattersall;P. Ferreira
双星的标量引力辐射：依时系统中的 Vainshtein 机制
影响因子：
3.5
作者：
Dar, Furqan;de Rham, Claudia;Deskins, J Tate;Giblin, John T;Tolley, Andrew J
通讯作者：
Tolley, Andrew J
Horndeski 引力中低自旋黑洞光谱的预测
影响因子：
5
作者：
Tattersall O
通讯作者：
Tattersall O