Probing GHz gravitational waves with graviton-magnon resonance

• Ito, Asuka

• Ikeda, Tomonori

• 身内, 賢太朗

• 早田, 次郎

抄録

A novel method for extending the frequency frontier in gravitational wave observations is proposed. It is shown that gravitational waves can excite a magnon. Thus, gravitational waves can be probed by a graviton–magnon detector which measures resonance fluorescence of magnons. Searching for gravitational waves with a wave length $$\lambda $$λ by using a ferromagnetic sample with a dimension l, the sensitivity of the graviton–magnon detector reaches spectral densities, around $$5.4 \times 10^{-22} \times (\frac{l}{\lambda /2\pi })^{-2} \ [\mathrm{Hz}^{-1/2}]$$5.4×10-22×(lλ/2π)-2[Hz-1/2] at 14 GHz and $$8.6 \times 10^{-21} \times (\frac{l}{\lambda /2\pi })^{-2} \ [\mathrm{Hz}^{-1/2}]$$8.6×10-21×(lλ/2π)-2[Hz-1/2] at 8.2 GHz, respectively.

収録刊行物

• European Physical Journal C

  European Physical Journal C 80 (3), 179-179, 2020-02-27

  Springer

キーワード

• Physics and Astronomy (miscellaneous)
• Engineering (miscellaneous)

詳細情報

• CRID: 1050856995322516608
• NII論文ID: 120006823974
• NII書誌ID: AA11188397
• DOI: 10.1140/epjc/s10052-020-7735-y
• ISSN: 14346052
• ISSN: 14346044
• HANDLE: 20.500.14094/90006986
• Web Site: http://link.springer.com/content/pdf/10.1140/epjc/s10052-020-7735-y.pdf
• Web Site: http://link.springer.com/article/10.1140/epjc/s10052-020-7735-y/fulltext.html
• 本文言語コード: en
• 資料種別: journal article
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