Correlation of gravitational wave background noises and statistical loss for angular averaged sensitivity curves
Correlation of gravitational wave background noises and statistical loss for angular averaged sensitivity curves
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DOI：
10.1103/physrevd.104.063025
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发表时间：
2021-08
影响因子：
5
通讯作者：
N. Seto
中科院分区：
文献类型：
--
作者：
N. Seto
引力波背景会对分离的探测器产生相关噪声。与理想化的噪声无关网络相比，这种相关性会给实际的检测器网络带来统计损失。假设背景是各向同性的，我们专门研究了角平均灵敏度曲线的统计损失，并推导出依赖于重叠减少函数和背景噪声相对于仪器噪声的强度的简单表达式。对于未来的三角干涉仪，如ET和LISA，我们还讨论了抑制潜在统计损失的首选网络几何结构。
Gravitational wave backgrounds generate correlated noises to separated detectors. This correlation can induce statistical losses to actual detector networks, compared with idealized noiseindependent networks. Assuming that the backgrounds are isotropic, we examine the statistical losses specifically for the angular averaged sensitivity curves, and derive simple expressions that depend on the overlap reduction functions and the strength of the background noises relative to the instrumental noises. For future triangular interferometers such as ET and LISA, we also discuss preferred network geometries to suppress the potential statistical losses.