Correction: Collective motion of chiral Brownian particles controlled by a circularly-polarized laser beam

Hernández, Roberto Ramírez; Sevilla, Francisco J.; Mazzulla, A.; Pagliusi, P.; Pellizzi, Nicola; Cipparrone, G.

doi:10.1039/d1sm90036f

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“…Still, the foregoing simulations with velocity damping at the wall manifestly fall short of faithfully reproducing some salient experimental features, in particular the breaking of the CW-CCW symmetry. Previous studies performed on chiral particles 13 , 14 show that any small tendency to rotate in a particular direction at the level of individual agents would be able to bias the rotation in a certain direction. For our particular case, we claim that this missing ingredient, in complement to (or in replacement for) wall damping, is the propensity of right-handed people to turn left when they come to face a wall, an effect first established in behavioural neuroscience by Mohr et al 15 but still debated 16 .…”

Section: Resultsmentioning

confidence: 99%

Spontaneous emergence of counterclockwise vortex motion in assemblies of pedestrians roaming within an enclosure

Echeverría-Huarte

Nicolas

Hidalgo

et al. 2022

Sci Rep

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The emergence of coherent vortices has been observed in a wide variety of many-body systems such as animal flocks, bacteria, colloids, vibrated granular materials or human crowds. Here, we experimentally demonstrate that pedestrians roaming within an enclosure also form vortex-like patterns which, intriguingly, only rotate counterclockwise. By implementing simple numerical simulations, we evidence that the development of swirls in many-particle systems can be described as a phase transition in which both the density of agents and their dissipative interactions with the boundaries play a determinant role. Also, for the specific case of pedestrians, we show that the preference of right-handed people (the majority in our experiments) to turn leftwards when facing a wall is the symmetry breaking mechanism needed to trigger the global counterclockwise rotation observed.

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Section: Resultsmentioning

confidence: 99%

Spontaneous emergence of counterclockwise vortex motion in assemblies of pedestrians roaming within an enclosure

Echeverría-Huarte

Nicolas

Hidalgo

et al. 2022

Sci Rep

View full text Add to dashboard Cite

show abstract

Correction: Collective motion of chiral Brownian particles controlled by a circularly-polarized laser beam

Abstract: Correction for ‘Collective motion of chiral Brownian particles controlled by a circularly-polarized laser beam’ by Raúl Josué Hernández et al., Soft Matter, 2020, 16, 7704–7714, DOI: 10.1039/C9SM02404B.

Cited by 1 publication

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Spontaneous emergence of counterclockwise vortex motion in assemblies of pedestrians roaming within an enclosure

Spontaneous emergence of counterclockwise vortex motion in assemblies of pedestrians roaming within an enclosure

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