Speaker
Yechan Kim
(KAIST)
Description
Ultralight wave dark matter exhibits oscillations that can modulate particle physics observables. The mixing of two wave dark matter fields can alter this simple oscillation, generating nontrivial temporal structures beyond a monochromatic signal. We discuss two scenarios: potential oscillation with periodic symmetry breaking and restoration, and wave-envelope dark matter with a slow beating envelope. These can imprint characteristic signatures on neutrino observables such as neutrinoless double beta decay and cosmic neutrino background. This talk is based on our recent papers JHEP 07 (2025) 269 and arXiv:2604.14480.
Authors
Hye-Sung Lee
(KAIST)
Yechan Kim
(KAIST)