论文标题
重力波检测的杂耍干涉仪的概念设计和科学案例
Conceptual design and science cases of a juggled interferometer for gravitational wave detection
论文作者
论文摘要
杂耍干涉仪（JIFO）是一种基于地球的重力波检测器，使用反复自由下落的测试量。不用担心地震噪声和悬浮热噪声，与当前基于地球的重力波检测器相比，JIFO在较低的频率下具有更好的灵敏度。如果一个人采用边缘锁定方法，JIFO的数据读数方法可能会具有挑战性。我们在本文中提出了一种相重建方法，它通过建立具有无环境的信号噪声比的复杂函数。考虑到爱因斯坦望远镜（ET）的位移噪声预算，我们表明，即使有不连续的数据，杂耍的测试质量也会显着提高0.1-2.5 $ \，$ Hz的敏感性。带有提高敏感性的科学案例将包括检测出$ 10^4-10^5 \，m _ {\ odot} $的黑洞的准正常模式，以黑孔和中子风格的灵感来测试Brans-Dicke理论，并检测到Primordial-Black-Hole-Hole-Hole-Hole-Hole-Hole Chare Chare Chaleced的重力波。
The Juggled interferometer (JIFO) is an earth-based gravitational wave detector using repeatedly free-falling test masses. With no worries of seismic noise and suspension thermal noise, the JIFO can have much better sensitivity at lower frequencies than the current earth-based gravitational wave detectors. The data readout method of a JIFO could be challenging if one adopts the fringe-locking method. We present a phase reconstruction method in this paper by building up a complex function which has a fringe-independent signal-to-noise ratio. Considering the displacement noise budget of the Einstein Telescope (ET), we show that the juggled test masses significantly improve the sensitivity at 0.1-2.5$\,$Hz even with discontinuous data. The science cases brought with the improved sensitivity would include detecting quasi-normal modes of black holes with $10^4-10^5\,M_{\odot}$, testing Brans-Dicke theory with black-hole and neutron-star inspirals, and detecting primordial-black-hole-related gravitational waves.
