IAS Physics Group Meeting

Abstract: Tidal deformabilities serve as an effective tool to study the structures of compact objects. In the first part of the talk, I will present how the worldline effective field theory (EFT) can be applied to examine the tidal responses of compact objects. This approach offers a robust framework for parameterizing tidal effects, enabling precise data analysis of observations from the current Gravitational-wave Transient Catalog (GWTC). In the second half of the talk, I will discuss how we can use the gravitational Raman scattering amplitudes to understand the tidal effects. Specifically, for black holes (BHs), this amplitude in the partial wave basis can be exactly solved using black hole perturbation theory. I will discuss the mathematical structure of this amplitude and demonstrate our progress towards achieving high-precision studies of tidal effects.