dorsal/arxiv
View SchemaInitiating a Mexican wave: An instantaneous collective decision with both short and long range interactions
| Authors | Illes J. Farkas, Tamas Vicsek |
|---|---|
| Categories | |
| ArXiv ID | physics/0601181 |
| URL | https://arxiv.org/abs/physics/0601181 |
| DOI | 10.1016/j.physa.2006.01.075 |
| Journal | Physica A 369, 830-840 (2006) |
Abstract
An interesting example for collective decision making is the so-called Mexican wave during which the spectators in a stadium leap to their feet with their arms up and then sit down again following those to their left (right) with a small delay. Here we use a simple, but realistic model to explain how the combination of the local and global interactions of the spectators produces a breaking of the symmetry resulting in the replacement of the symmetric solution -- containing two propagating waves -- by a single wave moving in one of the two possible directions. Our model is based on and compared to the extensive observations of volunteers filling out the related questionnaire we have posted on the Internet. We find that, as a function of the parameter controlling the strength of the global interactions, the transition to the single wave solution has features reminiscent of discontinuous transitions. After the spontaneous symmetry breaking the two directions of propagation are still statistically equivalent. We investigate also how this remaining symmetry is broken in real stadia by a small asymmetrical term in the perception of spectators.
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"abstract": "An interesting example for collective decision making is the so-called\nMexican wave during which the spectators in a stadium leap to their feet with\ntheir arms up and then sit down again following those to their left (right)\nwith a small delay. Here we use a simple, but realistic model to explain how\nthe combination of the local and global interactions of the spectators produces\na breaking of the symmetry resulting in the replacement of the symmetric\nsolution -- containing two propagating waves -- by a single wave moving in one\nof the two possible directions. Our model is based on and compared to the\nextensive observations of volunteers filling out the related questionnaire we\nhave posted on the Internet. We find that, as a function of the parameter\ncontrolling the strength of the global interactions, the transition to the\nsingle wave solution has features reminiscent of discontinuous transitions.\nAfter the spontaneous symmetry breaking the two directions of propagation are\nstill statistically equivalent. We investigate also how this remaining symmetry\nis broken in real stadia by a small asymmetrical term in the perception of\nspectators.",
"arxiv_id": "physics/0601181",
"authors": [
"Illes J. Farkas",
"Tamas Vicsek"
],
"categories": [
"physics.soc-ph",
"physics.comp-ph"
],
"doi": "10.1016/j.physa.2006.01.075",
"journal_ref": "Physica A 369, 830-840 (2006)",
"title": "Initiating a Mexican wave: An instantaneous collective decision with both short and long range interactions",
"url": "https://arxiv.org/abs/physics/0601181"
},
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