Speaker
Kevin Grosvenor
Description
A Fracton is an excitation whose mobility when in isolation is restricted by various types of symmetry (e.g., multipole or subsystem symmetries). However, when these come together, the composite states they form may move much more freely. I will briefly discuss the history of this field and point out some of the conceptual puzzles that have fueled their study. I will focus particularly on the question of UV/IR mixing and how it affects renormalization.
