Active cage model of glassy dynamics.

We build up a phenomenological picture in terms of the effective dynamics of a tracer confined in a cage experiencing random hops to capture some characteristics of glassy systems. This minimal description exhibits scale invariance properties for the small-displacement distribution that echo experimental observations. We predict the existence of exponential tails as a crossover between two Gaussian regimes. Moreover, we demonstrate that the onset of glassy behavior is controlled only by two dimensionless numbers: the number of hops occurring during the relaxation of the particle within a local cage and the ratio of the hopping length to the cage size.

• Publication year

  2016

• Venue

  Physical Review E

• Publication date

  2016-01-25

• Fields of study

  Medicine, Physics

• Identifiers
  DOI 10.1103/PhysRevE.94.012610arXiv 1601.06613PMID 27575182
• External record

  Open on Semantic Scholar

• Source metadata

  Semantic Scholar, PubMed

• No claims are published for this paper.

• No concepts are published for this paper.

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