Particle velocity controls phase transitions in contagion dynamics
Abstract Interactions often require the proximity between particles. The movement of particles, thus, drives the change of the neighbors which are located in their proximity, leading to a sequence of interactions. In pathogenic contagion, infections occur through proximal interactions, but at the sa...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2019-04-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-019-42871-x |
| _version_ | 1818345802440900608 |
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| author | Jorge P. Rodríguez Fakhteh Ghanbarnejad Víctor M. Eguíluz |
| author_facet | Jorge P. Rodríguez Fakhteh Ghanbarnejad Víctor M. Eguíluz |
| author_sort | Jorge P. Rodríguez |
| collection | DOAJ |
| description | Abstract Interactions often require the proximity between particles. The movement of particles, thus, drives the change of the neighbors which are located in their proximity, leading to a sequence of interactions. In pathogenic contagion, infections occur through proximal interactions, but at the same time, the movement facilitates the co-location of different strains. We analyze how the particle velocity impacts on the phase transitions on the contagion process of both a single infection and two cooperative infections. First, we identify an optimal velocity (close to half of the interaction range normalized by the recovery time) associated with the largest epidemic threshold, such that decreasing the velocity below the optimal value leads to larger outbreaks. Second, in the cooperative case, the system displays a continuous transition for low velocities, which becomes discontinuous for velocities of the order of three times the optimal velocity. Finally, we describe these characteristic regimes and explain the mechanisms driving the dynamics. |
| first_indexed | 2024-12-13T17:08:10Z |
| format | Article |
| id | doaj.art-b63026c6a0b54feba5b206abaa88f1ae |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-13T17:08:10Z |
| publishDate | 2019-04-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-b63026c6a0b54feba5b206abaa88f1ae2022-12-21T23:37:38ZengNature PortfolioScientific Reports2045-23222019-04-01911910.1038/s41598-019-42871-xParticle velocity controls phase transitions in contagion dynamicsJorge P. Rodríguez0Fakhteh Ghanbarnejad1Víctor M. Eguíluz2Instituto de Física Interdisciplinar y Sistemas Complejos IFISC (CSIC-UIB)Technische Universität BerlinInstituto de Física Interdisciplinar y Sistemas Complejos IFISC (CSIC-UIB)Abstract Interactions often require the proximity between particles. The movement of particles, thus, drives the change of the neighbors which are located in their proximity, leading to a sequence of interactions. In pathogenic contagion, infections occur through proximal interactions, but at the same time, the movement facilitates the co-location of different strains. We analyze how the particle velocity impacts on the phase transitions on the contagion process of both a single infection and two cooperative infections. First, we identify an optimal velocity (close to half of the interaction range normalized by the recovery time) associated with the largest epidemic threshold, such that decreasing the velocity below the optimal value leads to larger outbreaks. Second, in the cooperative case, the system displays a continuous transition for low velocities, which becomes discontinuous for velocities of the order of three times the optimal velocity. Finally, we describe these characteristic regimes and explain the mechanisms driving the dynamics.https://doi.org/10.1038/s41598-019-42871-x |
| spellingShingle | Jorge P. Rodríguez Fakhteh Ghanbarnejad Víctor M. Eguíluz Particle velocity controls phase transitions in contagion dynamics Scientific Reports |
| title | Particle velocity controls phase transitions in contagion dynamics |
| title_full | Particle velocity controls phase transitions in contagion dynamics |
| title_fullStr | Particle velocity controls phase transitions in contagion dynamics |
| title_full_unstemmed | Particle velocity controls phase transitions in contagion dynamics |
| title_short | Particle velocity controls phase transitions in contagion dynamics |
| title_sort | particle velocity controls phase transitions in contagion dynamics |
| url | https://doi.org/10.1038/s41598-019-42871-x |
| work_keys_str_mv | AT jorgeprodriguez particlevelocitycontrolsphasetransitionsincontagiondynamics AT fakhtehghanbarnejad particlevelocitycontrolsphasetransitionsincontagiondynamics AT victormeguiluz particlevelocitycontrolsphasetransitionsincontagiondynamics |