论文标题
利用爱因斯坦望远镜的无效流
Utilizing the null stream of the Einstein Telescope
论文作者
论文摘要
在未来十年提议的第三代地面重力波探测器中，爱因斯坦望远镜提供了一种独特的无效流$ \ unicode {x2014} $，无信号的数据$ \ unicode {x2014} $的无信号线性组合，可实现否则对噪声模型的无环测试。我们在建模2030年代的噪声以及它将如何影响第三代探测器的性能时进行了预测和展示挑战。我们发现，爱因斯坦望远镜的无效流能够消除已知可以限制当前重力波搜索的瞬态探测器故障。我们讨论的技术在计算上是有效的，并且不需要关于故障模型的先验知识。此外，我们展示了如何使用无效流来提供对在线和离线数据分析所需的噪声功率谱的公正估计，即使乐队中有多个响亮的信号。我们概述了使用空流的其他方法。最后，我们评论爱因斯坦望远镜和任意探测器网络的NULL流分析的局限性和未来挑战。
Among third-generation ground-based gravitational-wave detectors proposed for the next decade, the Einstein Telescope provides a unique kind of null stream $\unicode{x2014}$ the signal-free linear combination of data $\unicode{x2014}$ that enables otherwise inaccessible tests of the noise models. We project and showcase challenges in modeling the noise in the 2030s and how it will affect the performance of third-generation detectors. We find that the null stream of the Einstein Telescope is capable of eliminating transient detector glitches that are known to limit current gravitational-wave searches. The techniques we discuss are computationally efficient and do not require a priori knowledge about glitch models. Furthermore, we show how the null stream can be used to provide an unbiased estimation of the noise power spectrum necessary for online and offline data analyses even with multiple loud signals in the band. We overview other approaches to utilizing the null stream. Finally, we comment on the limitations and future challenges of null-stream analyses for the Einstein Telescope and arbitrary detector networks.
