Nonlinear curvature effects in gravitational waves from inspiralling black hole binaries
Nonlinear curvature effects in gravitational waves from inspiralling black hole binaries
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DOI：
10.1103/physrevd.103.l121503
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发表时间：
2020-12
影响因子：
5
通讯作者：
B. Shiralilou;T. Hinderer;S. Nissanke;Néstor Ortiz;Helvi Witek
中科院分区：
文献类型：
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作者：
B. Shiralilou;T. Hinderer;S. Nissanke;Néstor Ortiz;Helvi Witek
来自黑洞合并的引力波（GW）允许对强场引力进行前所未有的探测。这需要在广义相对论的扩展中准确预测GWs。我们计算波形的一个子集的二次引力理论的低能量限制的量子引力范式的动机。工作在第一后牛顿近似，其中新的影响的曲率非线性超出标量场首次出现，我们量化的GW的相位和参数依赖的影响。我们的研究结果为今后的重力精密试验奠定了重要的基础。
Gravitational waves (GWs) from merging black holes allow for unprecedented probes of strong-field gravity. This requires accurate predictions of GWs in extensions of General Relativity. We compute waveforms in a subset of quadratic gravity theories motivated by the low-energy limit of quantum gravity paradigms. Working in the first post-Newtonian approximation, where the new effects of curvature nonlinearities beyond a scalar field first appear, we quantify the impact on the GW phasing and parameter dependence. Our results lay an important foundation for future precision tests of gravity.