Paper Number
AD1   Keynote 

Session
Rheology of Active Matter and Directed Systems

Title
Odd viscosity and odd elasticity

Presentation Date and Time
October 12, 2022 (Wednesday) 1:30

Track / Room
Track 4 / Michigan AB

Authors (Click on name to view author profile)

1. Vitelli, Vincenzo (University of Chicago)

Author and Affiliation Lines (in printed abstract book)
Vincenzo Vitelli
University of Chicago, Chicago, IL

Speaker / Presenter 
Vitelli, Vincenzo

Keywords
active matter

Text of Abstract
Elasticity typically refers to a material’s ability to store energy, while viscosity refers to a material’s tendency to dissipate it. In this talk, I discuss fluids and solids for which this is not the case. These materials display additional linear response coefficients known as odd viscosity and odd elasticity. First odd elasticity and odd viscosity are introduced from a continuum perspective, with an emphasis on their rich phenomenology, including transverse responses, modified dislocation dynamics, active waves and non-reciprocal phase transitions. Next, I explain how odd viscosity and odd elasticity arise in driven/active colloidal, granular, biological and robotic systems by elucidating different microscopic mechanisms.