Jamming - 2 thumbs up

Sidney Nagel            
James Franck Institute
University of Chicago


The classical glassy transition phase diagram is plotted in the T-P temperature-pressure plane. More recent work on granular media, colloids and foams has concentrated on transitions between a flow and stationary, or jammed states at T=0 in the sigma-P shear-pressure plane. We explore by means of numerical simulations the conjecture that the glassy transitions and the jamming are but two facets of a 3-dimenionsional T-P-sigma phase diagram. Some honest experiments have also been undertaken but not by us.