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5 papers · 1 filter
Logarithmic Clustering in Submonolayer Epitaxial Growth
P. L. Krapivsky, J. F. F. Mendes, S. Redner
We investigate submonolayer epitaxial growth with a fixed monomer flux and irreversible aggregation of adatom islands due to their effective diffusion. When the diffusivity D_k of…
Cosmic-String-Seeded Structure Formation
P. P. Avelino, E. P. S. Shellard, J. H. P. Wu +1
We describe the results of high-resolution numerical simulations of string-induced structure formation in open universes and those with a non-zero cosmological constant. For models…
Cosmic strings with interacting hot dark matter
P. P. Avelino, J. P. M. de Carvalho
We compute the linear power spectrum of cosmic string sedeed fluctuations in the context of neutrinos with a strong self-interaction and show that it is very similar to that obtain…
Cosmic Strings in an Open Universe: Quantitative Evolution and Observational Consequences
P. P. Avelino, R. R. Caldwell, C. J. A. P. Martins
The cosmic string scenario in an open universe is developed -- including the equations of motion, a model of network evolution, the large angular scale CMB temperature anisotropy,…
Short time dynamics of a two dimensional majority vote model
J. F. F. Mendes, M. A. Santos
Short time Monte Carlo methods are used to study the nonequilibrium ferromagnetic phase transition in a majority vote model in two dimensions. The existance of an initial critical…