Dynamic Criticality in Glass-Forming Liquids

Stephen Whitelam, Ludovic Berthier, Juan P. Garrahan
2004 Physical Review Letters  
We propose that the dynamics of supercooled liquids and the formation of glasses can be understood from the existence of a zero temperature dynamical critical point. To support our proposal, we derive from simple physical assumptions a dynamic field theory for supercooled liquids, which we study using the renormalization group (RG). Its long time behaviour is dominated by a zero temperature critical point, which for dimensions d > 2 belongs to the directed percolation universality class.
more » ... ality class. Molecular dynamics simulations confirm the existence of dynamic scaling behaviour consistent with the RG predictions.
doi:10.1103/physrevlett.92.185705 pmid:15169509 fatcat:6cgjzmfrdfddndvncm3bdrvvjy