Absorbing-State Transitions in Granular Materials Close to Jamming.
Physical review letters
American Physical Society
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Ness, C., & Cates, M. (2020). Absorbing-State Transitions in Granular Materials Close to Jamming.. Physical review letters, 124 (8), 088004. https://doi.org/10.1103/physrevlett.124.088004
We consider a model for driven particulate matter in which absorbing states can be reached both by particle isolation and by particle caging. The model predicts a non-equilibrium phase diagram in which analogues of hydrodynamic and elastic reversibility emerge at low and high volume fractions respectively, partially separated by a diffusive, non-absorbing region. We thus find a single phase boundary that spans the onset of chaos in sheared suspensions to the onset of yielding in jammed packings. This boundary has the properties of a non-equilibrium second order phase transition, leading us to write a Manna-like mean-field description that captures the model predictions. Dependent on contact details, jamming marks either a direct transition between the two absorbing states, or occurs within the diffusive region.
ERC, Royal Society, Pembroke College
European Commission Horizon 2020 (H2020) ERC (740269)
Royal Society (RP170002)
External DOI: https://doi.org/10.1103/physrevlett.124.088004
This record's URL: https://www.repository.cam.ac.uk/handle/1810/301720
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