Depinning by Fracture in a Glassy Background
M. B. Hastings, C. J. Olson Reichhardt, C. Reichhardt
Abstract
We force a single particle through a two-dimensional simulated glass. We find that the particle velocity obeys a robust power law that persists to drives well above threshold. As the single driven particle moves, it induces cooperative distortions in the surrounding medium. We show theoretically that a fracture model for these distortions produces power law behavior, and discuss implications for experimental probes of soft matter systems.
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