Special Seminar: Prof. Nathan Keim - Wednesday, May 1st 10am
Connolly, Amy L.
connolly at physics.osu.edu
Tue Apr 30 22:58:53 EDT 2019
Hi All,
Prof. Nathan Keim from Cal Poly will give a special seminar arranged by Lisa Hall in Chemical and Biomolecular Engineering (next door to PRB) in CBEC 169 at 10am on Wednesday, May 1st. His title and abstract are below.
Thanks,
Amy
Wed., May 1st, CBEC 10-11 am
Cyclic Memories in Disordered Materials
Cyclic driving happens all around us. Buildings and bridges are repeatedly loaded and unloaded, and many organisms synchronize their functions with day and night. In some cases, a material that is deformed repeatedly can "learn" and recall the amplitudes of that driving, effectively adding a programmable component to its future response. I present experiments with a suspension of particles in liquid, and a disordered solid made of closely packed particles. These materials exemplify two different but generic ways that non-equilibrium matter can retain memories, with each one having parallels in another, seemingly disparate system. Studying memory formation can thus illuminate a material’s non-equilibrium nature, including the importance of disorder and noise for learning.
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