Physics – Condensed Matter – Statistical Mechanics
Scientific paper
2000-02-10
Phys. Rev. E 62, 276 (2000)
Physics
Condensed Matter
Statistical Mechanics
30 pages, 5 ps figures
Scientific paper
10.1103/PhysRevE.62.276
We introduce and investigate the stochastic dynamics of the density of local extrema (minima and maxima) of non-equilibrium surface fluctuations. We give a number of exact, analytic results for interface fluctuations described by linear Langevin equations, and for on-lattice, solid-on-solid surface growth models. We show that in spite of the non-universal character of the quantities studied, their behavior against the variation of the microscopic length scales can present generic features, characteristic to the macroscopic observables of the system. The quantities investigated here present us with tools that give an entirely un-orthodox approach to the dynamics of surface morphologies: a statistical analysis from the short wavelength end of the Fourier decomposition spectrum. In addition to surface growth applications, our results can be used to solve the asymptotic scalability problem of massively parallel algorithms for discrete event simulations, which are extensively used in Monte-Carlo type simulations on parallel architectures.
Korniss Gyorgy
Sarma Sankar Das
Toroczkai Zoltan
Zia Royce K. P.
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