论文标题
评论高级LIGO引力波观测站，导致观察四个
Review of the Advanced LIGO gravitational wave observatories leading to observing run four
论文作者
论文摘要
定期检测到来自二进制黑洞和中子星星合并的重力波。截至2021年，Ligo和处女座探测器已经进行了90个自信的引力检测。正在进行的工作，以进一步提高检测器对第四次观察运行的灵敏度，包括安装一些A+升级，旨在降低限制对引力波的灵敏度的基本噪声。在这篇综述中，我们将概述LIGO探测器的工作方式，包括其光学配置和锁定程序，讨论检测器的基本和技术噪声限制，并与当前测量的灵敏度进行比较，并查看当前在检测器中安装的A+升级。
Gravitational waves from binary black hole and neutron star mergers are being regularly detected. As of 2021, ninety confident gravitational wave detections have been made by the LIGO and Virgo detectors. Work is ongoing to further increase the sensitivity of the detectors for the fourth observing run, including installing some of the A+ upgrades designed to lower the fundamental noise that limits the sensitivity to gravitational waves. In this review, we will overview how the LIGO detectors work, including their optical configuration and lock acquisition procedure, discuss the detectors' fundamental and technical noise limits and compare to the current measured sensitivity, and review the A+ upgrades currently being installed in the detectors.
