1 citations · 2 across the 4 of their papers we have counts for
5 papers
Higher Order Spectra in Avalanche Models
Amit P. Mehta, Karin A. Dahmen, A. C. Mills +1
Utilizing the Haar transform, we study the higher order spectral properties of mean field avalanche models, whose avalanche dynamics are described by Poisson statistics at a critic…
Noise in Disordered Systems: Higher Order Spectra in Avalanche Models
Amit P. Mehta, Karin A. Dahmen, M. W. Weissman +1
We present a novel analytic calculation of the Haar power spectra, and various higher order spectra, of mean field avalanche models. We also compute these spectra from a simulation…
Asymmetric spreading in highly advective, disordered environments
John H. Carpenter, Karin A. Dahmen
Spreading of bacteria in a highly advective, disordered environment is examined. Predictions of super-diffusive spreading for a simplified reaction-diffusion equation are tested. C…
Universal shape profiles of earthquake ruptures
Amit P. Mehta, Karin A. Dahmen, Yehuda Ben-Zion
Universal shape profiles in a variety of systems contain crucial information on the underlying dynamics. We develop such shape profiles for earthquakes as a stronger test of theory…
Disorder-Induced Critical Phenomena in Hysteresis: A Numerical Scaling Analysis
Olga Perkovic, Karin A. Dahmen, James P. Sethna
Experimental systems with a first order phase transition will often exhibit hysteresis when out of equilibrium. If defects are present, the hysteresis loop can have different shape…