RT Journal Article
T1 Spin-glass-like aging in colloidal and granular glasses
A1 Seoane Bartolomé, Beatriz
A1 Zamponi, Francesco
AB Motivated by the mean field prediction of a Gardner phase transition between a "normal glass" and a "marginally stable glass", we investigate the off-equilibrium dynamics of three-dimensional polydisperse hard spheres, used as a model for colloidal or granular glasses. Deep inside the glass phase, we find that a sharp crossover pressure PG separates two distinct dynamical regimes. For pressure P < P-G, the glass behaves as a normal solid, displaying fast dynamics that quickly equilibrate within the glass free energy basin. For P > P-G, instead, the dynamics become strongly anomalous, displaying very large equilibration timescales, aging, and a constantly increasing dynamical susceptibility. The crossover at P-G is strongly reminiscent of the one observed in three-dimensional spin-glasses in an external field, suggesting that the two systems could be in the same universality class, consistent with theoretical expectations.
PB Royal Society of Chemistry
SN 1744-683X
YR 2018
FD 2018
LK https://hdl.handle.net/20.500.14352/116716
UL https://hdl.handle.net/20.500.14352/116716
LA eng
NO B. Seoane and F. Zamponi, Soft Matter, 2018, 14, 5222–5234.
NO European Commission
NO Ministerio de Economia y Competitividad (España)
DS Docta Complutense
RD 8 abr 2025