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arXiv · 2203.07231

Coupled dynamical phase transitions in driven disk packings

Akash Ghosh·Jaikumar Radhakrishnan·Paul M. Chaikin·Dov Levine·Shankar Ghosh
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Abstract

Under the influence of oscillatory shear, a mono-layer of frictional granular disks exhibits two dynamical phase transitions: a transition from an initially disordered state to an ordered crystalline state, and a dynamic active-absorbing phase transition. Although there is no reason, {\it a-priori}, for these to be at the same critical point, they are. The transitions may also be characterized by the disk trajectories, which are non-trivial loops breaking time-reversal invariance.

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Akash Ghosh, Jaikumar Radhakrishnan, Paul M. Chaikin, Dov Levine, Shankar Ghosh. 2022-03-14. Coupled dynamical phase transitions in driven disk packings. https://doi.org/10.1103/physrevlett.129.188002

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