利用重力子-磁振子共振探測千兆赫茲重力波

利用重力子-磁振子共振探測千兆赫茲重力波


Seminar:- Probing GHz Gravitational Waves with Graviton-magnon Resonance 
 
In the era of gravitational wave astronomy/cosmology, it is important not only to improve the sensitivity of existing detectors but also to extend detectable frequency range with novel methods. The speaker and his collaborators show that gravitational waves can induce resonant spin precessions of electrons(magnon) in the presence of an external magnetic field. This phenomenon, we call it graviton-magnon resonance, enables them to probe gravitational waves in the Gigahertz (GHz) frequency range. Furthermore, they give upper limits on GHz gravitational waves by utilizing measurements of resonance fluorescence of magnons.
 
時間:2019.05.30(四) 16:45
地點:香港科技大學 李兆基校園 盧家驄薈萃樓 高研院4042室
講者:伊藤飛鳥 Asuka ITO(神戶大學)
語言:英語

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此活動由香港科技大學 賽馬會高等研究院主辦。