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Título

Divide and conquer: resonance induced by competitive interactions

AutorVaz Martins, Teresa ; Toral, Raúl ; Santos, Maria Augusta
Fecha de publicaciónfeb-2009
EditorSpringer
CitaciónEuropean Physical Journal B 67(3): 329-336 (2009)
ResumenWe study an Ising model in a network with disorder induced by the presence of both attractive and repulsive links and subjected to a periodic subthreshold signal. By means of numerical simulations and analytical calculations we give evidence that the global response of the system reaches a maximum value for a given fraction of the number of repulsive interactions. The model can represent a network of spin-like neurons with excitatory and inhibitory couplings, or a simple opinion spreading model. In this context, attractive/repulsive links represent friends and enemies. “Divide and Conquer” refers to the fact that in order to force a society to adopt a new point of view, it helps to break its homogeneity by fostering enmities amongst its members.
Descripción8 pages, 10 figures.-- PACS. 89.75.Fb Structures and organization in complex systems – 87.19.ln Oscillations and resonance – 05.45.-a Nonlinear dynamics and chaos.-- Published online 4 Dec. 2008.-- http://arxiv.org/abs/0805.4501
Versión del editorhttp://dx.doi.org/10.1140/epjb/e2008-00437-9
URIhttp://hdl.handle.net/10261/18595
DOI10.1140/epjb/e2008-00437-9
ISSN1434-6028 (Print)
1434-6036 (Online)
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