Events at: Director’s conference room (50A5132) LBNL

https://lbnl.zoom.us/j/94928022788?pwd=emVQWG1mTnhSbHVqekVuenk0VEVQZz09 Abstract: I will give an overview of the progress made in recent years in the study of CFT data for large charge operators using the semiclassical approximation. The basic result is that, in this regime, the data are universally codified by the dynamics of a superfluid phase for the theory compactified on the cylinder.The advances so far mostly concerned euclidean … Read More

https://lbnl.zoom.us/j/94928022788?pwd=emVQWG1mTnhSbHVqekVuenk0VEVQZz09 Title: The quality/cosmology tension for a post-inflationary QCD axion Abstract: It is difficult to construct a post-inflation QCD axion model that solves the axion quality problem (and hence the Strong CP problem) without introducing a cosmological disaster. In a post-inflation axion model, the axion field value is randomized during the Peccei-Quinn phase transition, and axion domain walls form at … Read More