En las fronteras de la Materia Condensada

In this contribution we study the dynamics of a supercooled liquid near the mode coupling transition temperature. We performed long molecular dynamics simulations for a binary Lennard Jones mixture at different temperatures and obtain by periodic quenches the Inherent Structures (IS) underlying instantaneous configurations of the system. We define a correlation function that gives the probability that after a given time the system is found "over" the same IS. These correlation functions help us to show that as the temperature is lowered the system get confined in a kind of "metabasins" for an increasing time that may be related with the relaxation time typical of the beta-relaxation in these systems.