论文标题
探索用镁质探索高频引力波
Exploring High Frequency Gravitational Waves with Magnons
论文作者
论文摘要
检测高于10 kHz的频率的重力波需要新的策略。在以前的论文中，我们提出了镁重力波检测器，并通过重新解释了轴突暗物质实验的现有数据来对GHz重力波提供了第一个限制。在本文中，我们表明可以通过构建特定于重力波的检测器来提高灵敏度。特别是，我们在费米正常坐标的扩展中采用了无限的术语总和，以探测与检测器大小相当的波长的探测重力波。结果，我们获得了$ H_C \ sim 10^{ - 20} $的灵敏度。
Detecting gravitational waves with frequencies higher than 10 kHz requires new strategies. In previous papers, we proposed magnon gravitational wave detectors and gave the first limit on GHz gravitational waves by reinterpreting the existing data from axion dark matter experiments. In this paper, we show that the sensitivity can be improved by constructing the detector specific to gravitational waves. In particular, we employ an infinite sum of terms in the expansion of Fermi normal coordinates to probe gravitational waves with a wavelength comparable to the detector size. As a consequence, we obtain sensitivity of around $h_c \sim 10^{-20}$.
