先进的LIGO隔震技术：策略、仪器和性能综述
Seismic isolation of Advanced LIGO: Review of strategy, instrumentation and performance
摘要：
将地面干涉引力波观测站与环境干扰隔离是先进探测器时代的巨大挑战之一。为了直接观测引力波，探测器组件和测试质量必须与地面运动高度惯性解耦，不仅要感测由引力波引起的时空的微弱应变，而且要保持非常灵敏的4 km干涉仪的共振。本文介绍了先进的LIGO干涉仪的地震隔离仪器和策略。它回顾了十多年来在引力波探测方面对主动隔离的研究，并介绍了先进LIGO天文台最近取得的性能。最后，讨论了主动隔震技术未来发展的前景以及对天体物理引力波研究的预期益处。除了引力波研究之外，本文的目标是为敏感的地基物理实验提供详细的隔离策略指南，这些实验可能受益于类似水平的惯性隔离。
英文摘要：
Isolating ground-based interferometric gravitational wave observatories from environmental disturbances is one of the great challenges of the advanced detector era. In order to directly observe gravitational waves, the detector components and test masses must be highly inertially decoupled from the ground motion not only to sense the faint strain of space-time induced by gravitational waves, but also to maintain the resonance of the very sensitive 4 km interferometers. This article presents the seismic isolation instrumentation and strategy developed for Advanced LIGO interferometers. It reviews over a decade of research on active isolation in the context of gravitational wave detection, and presents the performance recently achieved with the Advanced LIGO observatory. Lastly, it discusses prospects for future developments in active seismic isolation and the anticipated benefits to astrophysical gravitational wave searches. Beyond gravitational wave research, the goal of this article is to provide detailed isolation strategy guidelines for sensitive ground-based physics experiments that may benefit from similar levels of inertial isolation.
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