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arXiv 2212.04094gr-qcastro-ph.COhep-phhep-th
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利用磁子探索高频引力波

Exploring High Frequency Gravitational Waves with Magnons

Asuka Ito, Jiro Soda

AI总结:

本文提出利用磁子探测器探测高频引力波,通过费米正常坐标展开的无穷项和,将灵敏度提升至约$h_c \sim 10^{-20}$。

摘要:

探测频率高于10 kHz的引力波需要新的策略。在之前的论文中,我们提出了磁子引力波探测器,并通过重新解释轴子暗物质实验的现有数据,给出了GHz引力波的第一个限制。在本文中,我们表明,通过构建专门针对引力波的探测器,可以提高灵敏度。特别是,我们采用费米正常坐标展开中的无穷多项之和来探测波长与探测器尺寸相当的引力波。因此,我们获得了大约$h_c \sim 10^{-20}$的灵敏度。

英文摘要:

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 $h_c \sim 10^{-20}$.

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。

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