William H. Miller III Department of Physics & Astronomy

TITLE: The Uses of Non-Invertible Symmetries and “Dualities" ABSTRACT: Non-invertible symmetries are all the rage these days. I will explain a variety of their applications. One use is to extend Kramers-Wannier duality to a large class of models, explaining exact degeneracies between non-(conventional) symmetry-related ground states as well as in the low-energy spectrum. Other applications […]

TITLE: Quasi-normal modes of rotating black holes beyond General Relativity ABSTRACT: In this talk, I will summarize the recent advancements of quasi-normal modes in alternative theories of gravity. I will explain the main issues in computing the characteristic frequencies of rotating black holes and what are the most prominent strategies to tackle this problem. The […]

TITLE: Decoding Astrophysics from inspiraling LISA Massive Black Hole Binaries ABSTRACT: Our current understanding is that an environment – mainly consisting of gas, stars, or a third massive black hole (MBH) – is required to bring MBH binaries (MBHBs) with total mass ∼ MSun to near-merger from parsec separation. The final inspiral is driven by […]