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Crises and chaotic scattering in hydrodynamic pilot-wave experiments

Choueiri, G and Suri, B and Merrin, J and Serbyn, M and Hof, B and Budanur, NB (2022) Crises and chaotic scattering in hydrodynamic pilot-wave experiments. In: Chaos, 32 (9).

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Official URL: https://doi.org/10.1063/5.0102904


Theoretical foundations of chaos have been predominantly laid out for finite-dimensional dynamical systems, such as the three-body problem in classical mechanics and the Lorenz model in dissipative systems. In contrast, many real-world chaotic phenomena, e.g., weather, arise in systems with many (formally infinite) degrees of freedom, which limits direct quantitative analysis of such systems using chaos theory. In the present work, we demonstrate that the hydrodynamic pilot-wave systems offer a bridge between low- and high-dimensional chaotic phenomena by allowing for a systematic study of how the former connects to the latter. Specifically, we present experimental results, which show the formation of low-dimensional chaotic attractors upon destabilization of regular dynamics and a final transition to high-dimensional chaos via the merging of distinct chaotic regions through a crisis bifurcation. Moreover, we show that the post-crisis dynamics of the system can be rationalized as consecutive scatterings from the nonattracting chaotic sets with lifetimes following exponential distributions.

Item Type: Journal Article
Publication: Chaos
Publisher: American Institute of Physics Inc.
Additional Information: The copyright for this article belongs to the Author(s).
Keywords: article; human; hydrodynamics
Department/Centre: Division of Mechanical Sciences > Mechanical Engineering
Date Deposited: 31 Oct 2022 08:53
Last Modified: 31 Oct 2022 08:53
URI: https://eprints.iisc.ac.in/id/eprint/77646

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