Molecular Dynamics Study of Long-Lived Structures in a Fragile Glass   Forming Liquid
  We present molecular dynamics results for a two component, two-dimensional Lennard-Jones supercooled liquid near the glass transition. We find that the supercooled liquid is spatially heterogeneous and that there are long-lived clusters whose size distribution satisfies a scaling relation up to a cutoff. The similarity of several properties of the supercooled liquid to those of a mean-field glass-forming fluid near the spinodal suggests that the glass transition in the supercooled liquid is associated with an underlying thermodynamic instability. 
Gregory Johnson, Andrew I. Melcuk, Harvey Gould, W. Klein, and Raymond   D. Mountain