Relating the Dynamics of Supercooled Liquids to the Sensitivity of Modes to Small Perturbations

ORAL

Abstract

We propose an alternate method to relate the structural and dynamical properties of a model supercooled binary Lennard-Jones (BLJ) liquid approaching the glass transition. Our proposal builds on methods from random matrix theory and transport theory of disordered systems, where it was shown that the diffusivity/localization can be probed by an appropriate statistical analysis of the eigenvalues and eigenvectors of the Hamiltonian function. Specifically, we examine the viability of connecting the diffusion constant of the BLJ liquid to: (i) the mean level velocities (MLV) of eigenmodes, (ii) the variance of MLVs, and, (iii) the participation number of the eigenmodes.

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Authors

  • Vasile Iulian Clapa

    Physics Dept., Wesleyan University, Middletown, CT

  • Tsampikos Kottos

    Wesleyan University and MPI for Dynamics and Self-Organization, Department of Physics, Wesleyan University, Middletown, Connecticut 06459, USA \& MPI for Dynamics and Self-Organization, 37073 G\"ottingen, Germany, Physics Dept., Wesleyan University, Middletown, CT, Wesleyan University

  • Francis Starr

    Physics Dept., Wesleyan University, Middletown, CT, Wesleyan University, Physics Dept., Wesleyan University, Middletown, Physics Dept, Wesleyan University, Middletown CT, Wesleyan U., Middletown, CT