Special Joint High Energy and Condensed Matter Theory SeminarPaolo Glorioso (Stanford) “Breakdown of hydrodynamics in fracton fluids below 4+1 dimensions”

Jeffrey Anderson


Event Details


ABSTRACT
Fracton phases are characterized by that their elementary excitations have restricted mobility. In the context of hydrodynamics it has been shown theoretically, and confirmed experimentally, that such restricted mobility leads to novel emergent scaling laws. In this talk, I will introduce a framework to describe the hydrodynamics of fractons and predict such scaling laws, with particular focus on systems with conserved dipole and momentum. This hydrodynamics turns out to have rather exotic properties, owing to the fact that translation invariance leads to a non-trivial extension of spacetime symmetries. After developing an effective theory approach that allows accounting for fluctuations, I will show that such theory contains relevant nonlinearities that lead to the emergence of a stochastic non-Gaussian universality class, thus constituting a breakdown of its local hydrodynamic description.