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Marginal speed confinement resolves the conflict between correlation and control in natural flocks of birds
[article]
2021
arXiv
pre-print
Speed fluctuations of individual birds within natural flocks are moderate, due to the aerodynamic, energetic and biomechanical constraints of flight. Yet the spatial correlations of such fluctuations are scale-free, namely they have a range as wide as the entire group. Scale-free correlations and limited fluctuations set conflicting constraints on the mechanism controlling the speed of each bird, as the factors boosting correlations tend to amplify fluctuations, and vice versa. Here, using a
arXiv:2101.09748v2
fatcat:27naxijtlrg6hbkfe4qgifx54q