Comment on ``Dynamical Heterogeneities in a Supercooled Lennard-Jones Liquid''

Abstract

In two recent interesting letters evidence was presented for the existence of a growing dynamic correlation length when we approach the glass transition from the liquid phase (a similar divergence is present also in the off-equilibrium dynamics below $T_c$). Here we would like to point out that this phenomenon can be easily predicted using the replica approach.

1 page, 1 eps figure, submitted to prl