English

Universal scaling for disordered viscoelastic matter II: Collapses, global behavior and spatio-temporal properties

Soft Condensed Matter 2022-03-01 v1 Disordered Systems and Neural Networks Statistical Mechanics

Abstract

Disordered viscoelastic materials are ubiquitous and exhibit fascinating invariant scaling properties. In a companion article, we have presented comprehensive new results for the critical behavior of the dynamic susceptibility of disordered elastic systems near the onset of rigidity. Here we provide additional details of the derivation of the singular scaling forms of the longitudinal response near both jamming and rigidity percolation. We then discuss global aspects associated with these forms, and make scaling collapse plots for both undamped and overdamped dynamics in both the rigid and floppy phases. We also derive critical exponents, invariant scaling combinations and analytical formulas for universal scaling functions of several quantities such as transverse and density responses, elastic moduli, viscosities, and correlation functions. Finally, we discuss tentative experimental protocols to measure these behaviors in colloidal suspensions.

Keywords

Cite

@article{arxiv.2202.13933,
  title  = {Universal scaling for disordered viscoelastic matter II: Collapses, global behavior and spatio-temporal properties},
  author = {Danilo B. Liarte and Stephen J. Thornton and Eric Schwen and Itai Cohen and Debanjan Chowdhury and James P. Sethna},
  journal= {arXiv preprint arXiv:2202.13933},
  year   = {2022}
}

Comments

12 pages, 6 figures