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4 papers · 2 filters
Random walk on a population of random walkers
E. Agliari, R. Burioni, D. Cassi +1
We consider a population of labeled random walkers moving on a substrate, and an excitation jumping among the walkers upon contact. The label of the walker car…
Autocatalytic reaction on low-dimensional substrates
E. Agliari, R. Burioni, D. Cassi +1
We discuss a model for the autocatalytic reaction on substrates where the reactants perform a compact exploration of the space, i.e., on lattices whose spectral dimensi…
Universal features of information spreading efficiency on -dimensional lattices
E. Agliari, R. Burioni, D. Cassi +1
A model for information spreading in a population of mobile agents is extended to -dimensional regular lattices. This model, already studied on two-dimensional lattices, als…
Evidence for a floating phase of the transverse ANNNI model at high frustration
Matteo Beccaria, Massimo Campostrini, Alessandra Feo
We study the transverse quantum ANNNI model in the region of high frustration (k>0.5) using the DMRG algorithm. We obtain a precise determination of the phase diagram, showing clea…