2001/09/18 by Burkhard Doliwa, B. Doliwa, Andreas Heuer · 1 citation
Engineering · Materials Science · Physics and Astronomy · #Chemical physics #Classical mechanics #Cluster (spacecraft) #Cluster size #Computer science #Dynamics (music) #Material Dynamics and Properties #Mechanics #Molecular dynamics #Motion (physics) #Phase Equilibria and Thermodynamics #Physics #Statistical physics #Theoretical and Computational Physics #Time evolution #cond-mat.soft #cond-mat.stat-mech
paper · pdf · doi:10.1016/s0022-3093(02)01437-0
submitted to JNCS, conference proceedings of 4th IDMRCS (Crete), 4 eps figures
arxiv created 2001/09/18 · openalex publication_date 2002/09/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We present simulations of a hard disc system and analyze the time evolution of the dynamic heterogeneities. We characterize the time evolution of slow regions and slow particles individually. The motion of slow clusters turns out to be very restricted, i.e. a cluster is generated and annihilated in a spatial region four times the size of its maximum extent. The residual motion of the cluster can be traced back to subdiffusive motion of the constituent particles and the process of absorption and loss of adjacent particles. The subdiffusive dynamics is independent of how long the particles remain slow. Clusters of fast particles show an even smaller reach, which seems to be due to their short life time.