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首页> 外文期刊>Bulletin of the American Physical Society >APS -2017 Fall Meeting of the APS New England Section- Event - Testing Parameterized Theories of General Relativity using Gravitational Waves
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APS -2017 Fall Meeting of the APS New England Section- Event - Testing Parameterized Theories of General Relativity using Gravitational Waves

机译：APS -2017年APS新英格兰地区秋季会议-活动-使用引力波测试广义相对论的参数化理论

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The recent detections of gravitational waves (GWs) by the Laser Interferometer Gravitational-Wave Observatory (LIGO) have provided researchers with the first opportunities to test general relativity (GR) in the strong-field and highly-dynamical limit. Qualitative tests of the agreement between LIGO's GW observations and classical GR have already been done; we have carried out more quantitative tests in terms of controlled, parameterized deviations from GR. In this project, we simulate a number of binary black hole (BBH) merger waveforms with known amplitude and phase deviations from those predicted by GR that are governed by the real and imaginary parts, respectively, of a complex parameter $lambda$. We use Bayesian analysis to recover the deviation. We then provide an estimate of the number of GW detections from BBH mergers that are necessary to establish a given deviation from classical GR, notably finding that under 80 events are necessary to determine $lambda$ to a precision of 0.025 (a fractional precision of 5% for $lambda=0.5$).
机译：激光干涉仪重力波天文台（LIGO）最近对重力波（GWs）的检测为研究人员提供了在强场和高动力极限下测试广义相对论（GR）的第一个机会。 LIGO的GW观测值与经典GR之间的一致性的定性测试已经完成;我们根据GR的受控参数化偏差进行了更多的定量测试。在此项目中，我们模拟了许多二进制黑洞（BBH）合并波形，它们的振幅和相位偏差与GR预测的振幅和相位偏差分别由复杂参数$ lambda $的实部和虚部控制。我们使用贝叶斯分析来恢复偏差。然后，我们提供了从BBH合并中发现GW的数量的估计值，这些数量是建立与经典GR的给定偏差所必需的，尤其是发现必须在80个以下事件中将$ lambda $确定为精度为0.025（分数精度为5 ％for $ lambda = 0.5 $）。

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