The PADRES Publish/Subscribe System [chapter]

Hans-Arno Jacobsen, Alex Cheung, Guoli Li, Balasubramaneyam Maniymaran, Vinod Muthusamy, Reza Sherafat Kazemzadeh
Principles and Applications of Distributed Event-Based Systems  
The universal time-dependence of the mean-square displacement for motion in a random energy landscape with equal minima is evaluated analytically and numerically in the percolation path approximation (PPA), which was recently shown by extensive computer simulations in two and three dimensions [Dyre and Schr~ler, cond-mat/9601052] to be more accurate than the standard effective medium approximation (EMA). According to the PPA the universal mean-square displacement in dimensionless units as
more » ... on of time varies as 1 / In 2 ( t-~ ) for t ~ 0. This implies a quite different short-time behavior than predicted by the EMA, where the universal mean-square displacement varies as 1/ln(t -t) at short times [Dyre and Jacobsen, Phys. Rev. E 52 (1995) 2429].
doi:10.4018/978-1-60566-697-6.ch008 fatcat:iiwkscznibdpdejpsqcfbiv3c4