Kurt Broderix, Kamal K. Bhattacharya, Andrea Cavagna, Annette Zippelius, Irene Giardina
Published 2000-08-09Version 1
By means of molecular dynamics simulations, we study the stationary points of the potential energy in a Lennard-Jones liquid, giving a purely geometric characterization of the energy landscape of the system. We find a linear relation between the degree of instability of the stationary points and their potential energy, and we locate the energy where the instability vanishes. This threshold energy marks the border between saddle-dominated and minima-dominated regions of the energy landscape. The temperature where the potential energy of the Stillinger-Weber minima becomes equal to the threshold energy turns out to be very close to the mode-coupling transition temperature.
Comments: Invited talk presented by A.C. at the Conference: Disordered and Complex Systems, King's College London, July 2000
Journal: AIP Conference Proceedings, Vol. 553, pag. 23 (2001)
Energy landscape of a Lennard-Jones liquid: Statistics of stationary points
Transport Coefficients for Granular Media from Molecular Dynamics Simulations
Complete scaling makes differences along the critical isobar: Molecular dynamics simulations of Lennard-Jones fluid with finite-time scaling
