论文标题
带有宇宙探险家的重力波物理：低频灵敏度的限制
Gravitational-wave physics with Cosmic Explorer: limits to low-frequency sensitivity
论文作者
论文摘要
宇宙资源管理器（CE）是下一代地面引力波观测概念，设想在2030年代开始运行，并有望能够观察到二进制中子星和黑洞合并回到第一颗恒星的时间。宇宙资源管理器的敏感条带将延伸到10 Hz以下，其中设计主要受地球物理，热和量子噪声的限制。在这项工作中，分析了热，地震，重力梯度，量子，残余气体，散落的轻质和伺服控制噪声，以激励设施和真空系统设计需求，潜在的测试质量悬挂，牛顿降低降噪策略，改善的惯性传感器以及哭泣的控制要求。我们的分析表明，通过改进的技术，Cosmic Explorer可以比$ 10^{ - 23}/\ Mathrm {Hz}^{1/2} $更好地提供应变敏感性。我们的工作完善并扩展了对宇宙探险家概念的先前分析，并概述了使这一天文台成为现实所需的关键研究领域。
Cosmic Explorer (CE) is a next-generation ground-based gravitational-wave observatory concept, envisioned to begin operation in the 2030s, and expected to be capable of observing binary neutron star and black hole mergers back to the time of the first stars. Cosmic Explorer's sensitive band will extend below 10 Hz, where the design is predominantly limited by geophysical, thermal, and quantum noises. In this work, thermal, seismic, gravity-gradient, quantum, residual gas, scattered-light, and servo-control noises are analyzed in order to motivate facility and vacuum system design requirements, potential test mass suspensions, Newtonian noise reduction strategies, improved inertial sensors, and cryogenic control requirements. Our analysis shows that with improved technologies, Cosmic Explorer can deliver a strain sensitivity better than $10^{-23}/\mathrm{Hz}^{1/2}$ down to 5 Hz. Our work refines and extends previous analysis of the Cosmic Explorer concept and outlines the key research areas needed to make this observatory a reality.
