Title: Vibrations and rearrangements in marginally jammed systems

Author (Invited): Andrea Liu, University of Pennsylvania

Abstract:

The jamming transition of frictionless soft spheres is singular because it coincides with the threshold for mechanical stability. This lends the marginally-jammed solid just above the transition special properties, including excess low-frequency modes that extend all the way down to zero frequency at the transition. The low-frequency excess modes are quasi-localized and extremely sensitive to mechanical loading. They also have low energy barriers to rearrangements, suggesting that high-displacement regions in low-frequency quasi-localized modes may serve to identify shear transformation zones.

Valid HTML 4.01!

Copyright © All Rights Reserved.

Valid CSS!