Dynamic Gardner cross-over in a simple glass Auteur(s): Liao Qinyi, Berthier L., Zhou Hai-Jun, Xu Ning (Article) Publié: Proceedings Of The National Academy Of Sciences Of The United States Of America, vol. 120 p.e2218218120 (2023) Texte intégral en Openaccess : Ref HAL: hal-04140969_v1 Ref Arxiv: 2209.10917 DOI: 10.1073/pnas.2218218120 Ref. & Cit.: NASA ADS Exporter : BibTex | endNote Résumé: 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 critical exponents of jamming appear independent of the preparation history, the pertinence of Gardner physics far from equilibrium is an open question. To fill this gap, we numerically study the nonequilibrium dynamics of hard disks compressed toward the jamming transition using a broad variety of protocols. We show that dynamic signatures of Gardner physics can be disentangled from the aging relaxation dynamics. We thus define a generic dynamic Gardner cross-over regardless of the history. Our results show that the jamming transition is always accessed by exploring increasingly complex landscape, resulting in anomalous microscopic relaxation dynamics that remains to be understood theoretically. |