利用干涉式局部阻尼降低引力波探测器中悬镜的控制噪声
Reducing controls noise in gravitational wave detectors with interferometric local damping of suspended optics
AI总结：
本文通过建模HoQIs传感器替代阴影传感器控制悬架共振，实现共振峰抑制提升十倍并降低噪声，从而改善LIGO探测器10-20 Hz频段灵敏度。
摘要：
控制噪声是限制LIGO引力波探测器低频性能的一个因素。本文中，我们对使用称为HoQIs的新型传感器来控制悬架共振的效果进行了建模。我们表明，如果使用HoQIs而非标准的阴影传感器，我们可以将共振峰的抑制程度提高至十倍以上，同时减少阻尼系统注入的噪声。通过级联效应，这将减少共振交叉耦合，提高前馈控制的稳定性，并改善探测器在10-20 Hz频段的灵敏度。该分析表明，在当前和未来的探测器中应使用HoQIs等局部传感器，以提高低频性能。
英文摘要：
Control noise is a limiting factor in the low-frequency performance of the LIGO gravitational wave detectors. In this paper we model the effects of using new sensors called HoQIs to control the suspension resonances. We show if we were to use HoQIs, instead of the standard shadow sensors, we can suppress resonance peaks up to tenfold more while simultaneously reducing the noise injected by the damping system. Through a cascade of effects this will reduce the resonant cross-coupling, allow for improved stability for feed-forward control, and result in improved sensitivity of the detector in the 10-20 Hz band. This analysis shows that local sensors such as HoQIs should be used in current and future detectors to improve low-frequency performance.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
