Browsing by Author "Miguel Lopez, M. Del Carmen"

Now showing items 1-9 of 9

    • Effects of heterogeneous social interactions on flocking dynamics 

      Miguel Lopez, M. Del Carmen; Parley, Jack Thomas; Pastor Satorras, Romualdo (2018-02-08)
      Article
      Open Access
      Social relationships characterize the interactions that occur within social species and may have an important impact on collective animal motion. Here, we consider a variation of the standard Vicsek model for collective ...

    • Growth of oriented chains in dipolar colloids 

      Miguel Lopez, M. Del Carmen; Pastor Satorras, Romualdo (1999-11-29)
      Article
      Restricted access - publisher's policy
      We investigate the dynamics of the irreversible aggregation of linear rigid chains oriented along a preferred direction. We propose a Monte Carlo model, whose key ingredient is a logarithmically corrected anisotropic ...

    • Honeybee-like collective decision making in a kilobot swarm 

      March Pons, David; Múgica Gallart, Julia; Ferrero, Ezequiel E.; Miguel Lopez, M. Del Carmen (American Physical Society, 2024-08-07)
      Article
      Open Access
      Drawing inspiration from honeybee swarms' nest-site selection process, we assess the ability of a kilobot robot swarm to replicate this captivating example of collective decision making. Honeybees locate the optimal site ...

    • Kinetic growth of field-oriented chains in dipolar colloidal solutions 

      Miguel Lopez, M. Del Carmen; Pastor Satorras, Romualdo (1999-01)
      Article
      Open Access
      Experimental studies on the irreversible growth of field-induced chains of dipolar particles suggest an asymptotic power-law behavior of several relevant quantities. We introduce a Monte Carlo model of chain growth that ...

    • Scalar model of flocking dynamics on complex social networks 

      Miguel Lopez, M. Del Carmen; Pastor Satorras, Romualdo (American Institute of Physics (AIP), 2019-10-14)
      Article
      Open Access
      We investigate the effects of long-range social interactions in flocking dynamics by studying the dynamics of a scalar model of collective motion embedded in a complex network representing a pattern of social interactions, ...

    • Scale-free behavioral cascades and effective leadership in schooling fish 

      Múgica Gallart, Julia; Torrents Monegal, Jordi; Cristin, Javier; Puy Contreras, Andreu; Miguel Lopez, M. Del Carmen; Pastor Satorras, Romualdo (Nature, 2022-06-24)
      Article
      Open Access
      Behavioral contagion and the presence of behavioral cascades are natural features in groups of animals showing collective motion, such as schooling fish or grazing herbivores. Here we study empirical behavioral cascades ...

    • Selective social interactions and speed-induced leadership in schooling fish 

      Puy Contreras, Andreu; Gimeno Rosell, Elisabet; Torrents, Jordi; Bartashevich, Palina; Miguel Lopez, M. Del Carmen; Pastor Satorras, Romualdo; Romanczuk, Pawel (International Academy of Sciences (NAS), 2024-04-25)
      Article
      Open Access
      Animals moving together in groups are believed to interact among each other with effective social forces, such as attraction, repulsion, and alignment. Such forces can be inferred using “force maps,” i.e., by analyzing the ...

    • Signatures of criticality in turning avalanches of schooling fish 

      Puy Contreras, Andreu; Gimeno Rosell, Elisabet; March Pons, David; Miguel Lopez, M. Del Carmen; Pastor Satorras, Romualdo (American Physical Society, 2024-07-09)
      Article
      Open Access
      Moving animal groups transmit information through propagating waves or behavioral cascades, exhibiting characteristics akin to systems near a critical point from statistical physics. Using data from freely swimming schooling ...

    • Velocity fluctuations and hydrodynamic diffusion in sedimentation 

      Miguel Lopez, M. Del Carmen; Pastor Satorras, Romualdo (2001-01-23)
      Article
      Open Access
      We study non-equilibrium velocity fluctuations in a model for the sedimentation of non-Brownian particles experiencing long-range hydrodynamic interactions. The complex behavior of these fluctuations, the outcome of the ...