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Article Dans Une Revue Physical Review E Année : 2024

Loss of memory of an elastic line on its way to limit cycles

Résumé

Oscillatory-driven amorphous materials forget their initial configuration and converge to limit cycles. Here we investigate this memory loss under a nonquasistatic drive in a minimal model system, with quenched disorder and memory encoded in a spatial pattern, where oscillating protocols are formally replaced by a positive-velocity drive. We consider an elastic line driven athermally in a quenched disorder with biperiodic boundary conditions and tunable system size, thus controlling the area swept by the line per cycle as would the oscillation amplitude. The convergence to disorder-dependent limit cycle is strongly coupled to the nature of its velocity dynamics depending on system size. Based on the corresponding phase diagram, we propose a generic scenario for memory formation in disordered systems under finite driving rate
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Dates et versions

hal-04531448 , version 1 (03-04-2024)

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Elisabeth Agoritsas, Jonathan Barés. Loss of memory of an elastic line on its way to limit cycles. Physical Review E , 2024, 109 (4), pp.L042901. ⟨10.1103/PhysRevE.109.L042901⟩. ⟨hal-04531448⟩
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