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13 papers · 1 filter
Global firing induced by network disorder in ensembles of active rotators
Claudio J. Tessone, Damián H. Zanette, Raúl Toral
We study the influence of repulsive interactions on an ensemble of coupled excitable rotators. We find that a moderate fraction of repulsive interactions can trigger global firing…
Structural efficiency of percolation landscapes in flow networks
M. Angeles Serrano, Paolo De Los Rios
Complex networks characterized by global transport processes rely on the presence of directed paths from input to output nodes and edges, which organize in characteristic linked co…
Crystallization and melting of bacteria colonies and Brownian Bugs
Francisco Ramos, Cristobal Lopez, E. Hernandez-Garcia +1
Motivated by the existence of remarkably ordered cluster arrays of bacteria colonies growing in Petri dishes and related problems, we study the spontaneous emergence of clustering…
Generic Absorbing Transition in Coevolution Dynamics
F. Vazquez, V. M. Eguiluz, M. San Miguel
We study a coevolution voter model on a network that evolves according to the state of the nodes. In a single update, a link between opposite-state nodes is rewired with probabilit…
Time scale competition leading to fragmentation and recombination transitions in the coevolution of network and states
F. Vazquez, J. C. Gonzalez-Avella, V. M. Eguiluz +1
We study the co-evolution of network structure and node states in a model of multiple state interacting agents. The system displays two transitions, network recombination and fragm…
Elementary Excitations of a Bose-Einstein Condensate in an Effective Magnetic Field
D. R. Murray, P. Öhberg, Damiá Gomila +1
We calculate the low energy elementary excitations of a Bose-Einstein Condensate in an effective magnetic field. The field is created by the interplay between light beams carrying…