582 citations · 4.1k across the 113 of their papers we have counts for
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Optimization in random field Ising models by quantum annealing
Matti Sarjala, Viljo Petäjä, Mikko Alava
We investigate the properties of quantum annealing applied to the random field Ising model in one, two and three dimensions. The decay rate of the residual energy, defined as the e…
Surface criticality in random field magnets
L. Laurson, M. J. Alava
The boundary-induced scaling of three-dimensional random field Ising magnets is investigated close to the bulk critical point by exact combinatorial optimization methods. We measur…
Power spectra of self-organized critical sandpiles
Lasse Laurson, Mikko J. Alava, Stefano Zapperi
We analyze the power spectra of avalanches in two classes of self-organized critical sandpile models, the Bak-Tang-Wiesenfeld model and the Manna model. We show that these decay wi…
Correlations in Bipartite Collaboration Networks
Matti Peltomaki, Mikko Alava
Collaboration networks are studied as an example of growing bipartite networks. These have been previously observed to have structure such as positive correlations between nearest-…
Elastic lines on splayed columnar defects studied numerically
Viljo Petaja, Matti Sarjala, Mikko Alava +1
We investigate by exact optimization method properties of two- and three-dimensional systems of elastic lines in presence of splayed columnar disorder. The ground state of many lin…
Is demagnetization an efficient optimization method?
S. Zapperi, F. Colaiori, L. Dante +4
Demagnetization, commonly employed to study ferromagnets, has been proposed as the basis for an optimization tool, a method to find the ground state of a disordered system. Here we…