Cyclic inverse design on athermal disordered sphere packings produces an emergent marginally absorbing manifold that encodes return-point memory of the training range through gradient discontinuities.
Universality Class of the Reversible-Irreversible Transition in Sheared Suspensions
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abstract
Collections of non-Brownian particles suspended in a viscous fluid and subjected to oscillatory shear at very low Reynolds number have recently been shown to exhibit a remarkable dynamical phase transition separating reversible from irreversible behaviour as the strain amplitude or volume fraction are increased. We present a simple model for this phenomenon, based on which we argue that this transition lies in the universality class of the conserved DP models or, equivalently, the Manna model. This leads to predictions for the scaling behaviour of a large number of experimental observables. Non-Brownian suspensions under oscillatory shear may thus constitute the first experimental realization of an inactive-active phase transition which is not in the universality class of conventional directed percolation.
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physics.comp-ph 1years
2025 1verdicts
UNVERDICTED 1representative citing papers
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Learning by training: emergent return-point memory from cyclically tuning disordered sphere packings
Cyclic inverse design on athermal disordered sphere packings produces an emergent marginally absorbing manifold that encodes return-point memory of the training range through gradient discontinuities.