582 citations · 1.1k across the 24 of their papers we have counts for
4 papers · 1 filter
First excitations in two- and three-dimensional random-field Ising systems
Martin Zumsande, Mikko J. Alava, Alexander K. Hartmann
We present results on the first excited states for the random-field Ising model. These are based on an exact algorithm, with which we study the excitation energies and the excitati…
Circumspect descent prevails in solving random constraint satisfaction problems
Mikko Alava, John Ardelius, Erik Aurell +4
We study the performance of stochastic local search algorithms for random instances of the -satisfiability (-SAT) problem. We introduce a new stochastic local search algorith…
Effect of Disorder and Notches on Crack Roughness
Phani K. V. V. Nukala, Stefano Zapperi, Mikko J. Alava +1
We analyze the effect of disorder and notches on crack roughness in two dimensions. Our simulation results based on large system sizes and extensive statistical sampling indicate t…
Role of disorder in the size-scaling of material strength
Mikko J. Alava, Phani K. V. V. Nukala, Stefano Zapperi
We study the sample size dependence of the strength of disordered materials with a flaw, by numerical simulations of lattice models for fracture. We find a crossover between a regi…