Journal
EUROPHYSICS LETTERS
Volume 75, Issue 5, Pages 784-790Publisher
EDP SCIENCES S A
DOI: 10.1209/epl/i2006-10175-8
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We numerically study the interplay between heterogeneous dynamics and properties of negatively curved regions of the potential energy surface in a model glassy system. We find that the unstable modes of saddles and quasi-saddles undergo a localization transition close to the Mode-Coupling critical temperature. We also find evidence of a positive spatial correlation between clusters of particles having large displacements in the unstable modes and dynamical heterogeneities.
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