Bulletin of the American Physical Society
APS March Meeting 2022
Volume 67, Number 3
Monday–Friday, March 14–18, 2022; Chicago
Session N33: Non-Equilibrium Physics with Cold Atoms and Molecules, Rydberg Gases, and Trapped Ions II
11:30 AM–2:30 PM,
Wednesday, March 16, 2022
Room: McCormick Place W-192C
Sponsoring
Units:
DAMOP DCMP
Chair: Steve Campbell, University College Dublin
Abstract: N33.00008 : Valley Prize (2022): TBD
12:54 PM–1:30 PM
Presenter:
Andrew Lucas
(University of Colorado, Boulder)
Author:
Andrew Lucas
(University of Colorado, Boulder)
As an interesting example of a new universality class, I will describe a "fractonic" generalization of the non-equilibrium Kardar-Parisi-Zhang fixed point that can exist below four spatial dimensions. This non-equilibrium fixed point, and others, arise out of a fundamental instability of the hydrodynamics of a (constrained) fluid at rest.
One of these universality classes -- the subdiffusion of charge in the presence of dipole conservation -- has already been experimentally observed in ultracold atoms in a tilted optical lattice. Time permitting, I will suggest ideas for how to discover further universality classes in experiments.
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