Exploring high-frequency gravitational waves with magnons

被引:13
|
作者
Ito, Asuka [1 ,2 ]
Soda, Jiro [3 ]
机构
[1] KEK, Int Ctr Quantum Field Measurement Syst Studies Un, Tsukuba, Ibaraki 3050801, Japan
[2] KEK, Inst Particle & Nucl Studies, Theory Ctr, Tsukuba, Ibaraki 3050801, Japan
[3] Kobe Univ, Dept Phys, Kobe, Hyogo 6578501, Japan
来源
EUROPEAN PHYSICAL JOURNAL C | 2023年 / 83卷 / 08期
关键词
GRAVITON;
D O I
10.1140/epjc/s10052-023-11876-2
中图分类号
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号
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 gigahertz gravitational waves by reinterpreting the existing data from axion darkmatter 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) similar to 10(-20).
引用
收藏
页数:6
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