High Frequency Gravitational Wave Detection With The MAGO Cavity And Beyond

by Tom Krokotsch (DESY)

Thursday Oct 9, 2025, 12:00 PM → 1:00 PM Europe/Madrid

IFAE Seminar Room (In-Person)

The spectrum of gravitational waves emitted throughout the history of the universe is expected to extend to frequencies much higher than current large-scale detectors are exploring. Therefore, several experimental efforts are now under way to survey high frequency gravitational waves (HFGWs). I will first give an overview on the potential of HFGW searches for BSM physics and cosmology, discuss synergies with searches for axion-like dark matter, and introduce an ongoing DESY/Uni Hamburg/FNAL project to use the superconducting ‘MAGO’ cavity as such a detector. Afterwards, I will discuss prospects of using axion haloscopes to cover even higher frequency ranges and recent theoretical insights into predicting their sensitivity. Last, I will explain how quantum enhancement methods could push future detectors to cosmological GW sensitivities.