We consider the adiabatic evolution of glassy states under external perturbations. The formalism we use is very general. Here we use it for infinite-dimensional hard spheres where an exact analysis is possible. We consider perturbations of the boundary, i.e., compression or (volume preserving) shear strain, and we compute the response of glassy states to such perturbations: pressure and shear stress. We find that both quantities overshoot before the glass state becomes unstable at a spinodal point where it melts into a liquid (or yields). We also estimate the yield stress of the glass. Finally, we study the stability of the glass basins towards breaking into sub-basins, corresponding to a Gardner transition. We find that close to the dynamical transition, glasses undergo a Gardner transition after an infinitesimal perturbation.
Following the evolution of hard sphere glasses in infinite dimensions under external perturbations: compression and shear strain.
Corrado Rainone,Pierfrancesco Urbani,H. Yoshino,F. Zamponi
Published 2014 in Physical Review Letters
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- Publication year
2014
- Venue
Physical Review Letters
- Publication date
2014-11-04
- Fields of study
Medicine, Physics
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Semantic Scholar, PubMed
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