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EPL Association, European Physical Society Letters, 24(42), p. 537-539

DOI: 10.1051/jphyslet:019810042024053700

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Cascade of period doubling bifurcations and large stochasticity in the motions of a compass

Journal article published in 1981 by V. Croquette, C. Poitou
This paper is available in a repository.
This paper is available in a repository.

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Abstract

We propose a very simple mechanical device, consisting of a compass placed in a periodic oscillating field, which renders the observation of large scale stochasticity in Hamiltonian systems possible. We show that this device also exhibits a cascade of period doubling bifurcations. We determine experimentally the threshold of the first doublings. Nous proposons un système mécanique très simple, constitué d'une boussole dans un champ alternatif périodique, qui permet l'observation de la stochasticité à grande échelle des systèmes hamiltoniens. Nous montrons que ce système présente aussi une cascade de dédoublements de période. Nous déterminons expérimentalement les seuils des premiers dédoublements.