IQUIST Master Calendar

Back to Listing

Condensed Matter Seminar - "Hall viscosity beyond two dimensions"

Event Type
Seminar/Symposium
Sponsor
Physics - Condensed Matter
Virtual
wifi event
Date
Mar 11, 2022   1:00 pm  
Speaker
Barry Bradlyn, University of Illinois at Urbana-Champaign
Contact
Stephen Bullwinkel
E-Mail
bullwinkelstephen@hotmail.com
Phone
217-333-1652
Views
39
Originating Calendar
Physics - Condensed Matter Seminar

One of the many new ideas that grew out of the discovery of the quantum Hall effect is the notion of Hall viscosity. The Hall viscosity determines the non-dissipative stresses that develop in a fluid when it flows with a nonuniform velocity. In isotropic, two-dimensional fluids there is a unique Hall viscosity, which can in some cases be related to a topological invariant. In this talk, I will explore what happens when the assumptions of two-dimensionality and isotropy are relaxed. First, I'll show how new non-dissipative viscosity coefficients emerge with only discrete rotational symmetry, and I will connect these with the phenomenology of two-dimensional electron systems. Next, I'll show how cubic symmetry in three dimensions allows for intrinsically three-dimensional Hall viscosity coefficients. Finally, I will show how anisotropic viscosity coefficients can be measured using free surface waves in classical and quantum fluids.

link for robots only