Ponente
Descripción
Superradiant instabilities of rotating black holes can give rise to extended bosonic clouds surrounding them – gravitational atoms. These long-lived structures serve as natural laboratories for probing a wide range of parameter space for putative ultralight bosons in nature. The presence of a companion can significantly modify both the cloud's evolution and the orbital dynamics, leaving atrail of feedback effects that require detailed modeling. Building on the worldline effective field theory approach, we develop a systematic framework for binaries on generic (eccentric and inclined) orbits, capturing both resonant and non-resonant interactions. These interactions can lead to “smoking-gun” signatures – fixed points in the evolution of the orbital parameters. This approach allows us to provide a precise characterization of the imprints of ultralight particles in gravitational-wave signals from binary BHs – signatures that are within reach of upcoming observatories such as LISA, Cosmic Explorer, and the Einstein Telescope.
