Searching for high-freqeuncy gravitational waves with axion detectors
- January 12 (Thu) at 14:00 - 15:30, 2023 (JST)
- Valerie Domcke (Senior Faculty, Department of Theoretical Physics, CERN, Switzerland)
- Hybrid Format (Common Room 246-248 and Zoom)
- Ryo Namba
Current gravitational wave (GW) experiments cover a large frequency range from nHz to kHz. Beyond that, the regime of high frequency GWs is both extremely challenging challenging, and highly motivated as a unique window to the very early Universe. In this talk I will discuss a proposal for a new type of electromagnetic GW detector which makes use of the observation that GWs generate oscillating electromagnetic effects in the vicinity of external electric and magnetic fields. This is in close analogy to the interaction of the axion with electromagnetic fields. I will discuss how existing bounds from axion searches can be recast for GWs, as well as implications for future axion searches such as the DMRadio program.
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