This perspective article reviews arguments that glass-forming liquids are different from those
of standard liquid-state theory, which typically have a viscosity in the mPa· s range and …

Viscoelastic stress relaxation is a basic characteristic of soft matter systems such as colloids,
gels, and biological networks. Although the Maxwell model of linear viscoelasticity provides …

Amorphous solids lack long-range order. Therefore identifying structural defects—akin to
dislocations in crystalline solids—that carry plastic flow in these systems remains a daunting …

The similarity in mechanical properties of dense active matter and sheared amorphous
solids has been noted in recent years without a rigorous examination of the underlying …

Arrested soft materials such as gels and glasses exhibit a slow stress relaxation with a broad
distribution of relaxation times in response to linear mechanical perturbations. Although this …

Structural glasses formed by quenching a melt possess a population of soft quasilocalized
excitations—often called “soft spots”—that are believed to play a key role in various …

Mesoscale elasto-plastic models, with statistically distributed structural properties and elastic
coupling between discrete blocks, have been shown to quantitatively reproduce the main …

The criticality of the jamming transition responsible for amorphous solidification has been
theoretically linked to the marginal stability of a thermodynamic Gardner phase. While the …

It has been widely accepted that the plastic events of amorphous solids after mechanical
yield belong to a highly correlated avalanche state. However, whether the plastic events …

Amorphous materials exhibit complex material properties with strongly nonlinear behaviors.
Below a yield stress they behave as plastic solids, while they start to yield above a critical …