Dynamic criticality in glass-forming liquids

Details Dynamic criticality in glass-forming liquids Dynamic criticality in glass-forming liquids

2003-10-09

arxiv.org/abs/cond-mat/0310207v2

Phys. Rev. Lett. 92, 185705 (2004)

Physics

Condensed Matter

Soft Condensed Matter

4 pages, 2 figures

Scientific paper

10.1103/PhysRevLett.92.185705

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. Molecular dynamics simulations confirm the existence of dynamic scaling behaviour consistent with the RG predictions.

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