Jamming transitions in amorphous packings of frictionless spheres occur over a continuous range of volume fractions Auteur(s): Chaudhuri Pinaki, Berthier L., Sastry Srikanth (Article) Publié: Physical Review Letters, vol. 104 p.165701 (2010) Texte intégral en Openaccess : Ref HAL: hal-00514499_v1 PMID 20482065 Ref Arxiv: 0910.0364 DOI: 10.1103/PhysRevLett.104.165701 WoS: 000277007700037 Ref. & Cit.: NASA ADS Exporter : BibTex | endNote 186 Citations Résumé: We numerically produce fully amorphous assemblies of frictionless spheres in three dimensions and study the jamming transition these packings undergo at large volume fractions. We specify four protocols yielding a critical value for the jamming volume fraction which is sharply defined in the limit of large system size, but is different for each protocol. Thus, we directly establish the existence of a continuous range of volume fraction where nonequilibrium jamming transitions occur. However, these jamming transitions share the same critical behaviour. Our results suggest that, even in the absence of partial crystalline ordering, a unique location of a random close packing does not exist, and that volume fraction alone is not sufficient to describe the properties of jammed states. Commentaires: 5 pages, 3 figs Journal: Phys. Rev. Lett. 104, 165701 (2010) |