Starling flocks can propagate a collective turn as a wave while spontaneous velocity fluctuations stay overdamped; adding a quartic FPUT term to the alignment interaction reconciles both observations.
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Spin-Waves without Spin-Waves: A Case for Soliton Propagation in Starling Flocks
Starling flocks can propagate a collective turn as a wave while spontaneous velocity fluctuations stay overdamped; adding a quartic FPUT term to the alignment interaction reconciles both observations.