Centre de Physique Théorique


Jeudi 25 janvier 2018

14h00 – 15h00, Amphi 5 du CPT

Séminaire Dynamique Quantique et Classique

Jean-Marc Ginoux (Université de Toulon)


Starting from historical researches, we used, like Van der Pol and Le
Corbeiller, a cubic function for modeling the current-voltage characteristic
of a direct current low-pressure plasma discharge tube, i.e. a neon tube.
This led us to propose a new four-dimensional autonomous dynamical system
allowing to describe the experimentally observed phenomenon. Then,
mathematical analysis and detailed numerical investigations of such a
fourth-order torus circuit enabled to highlight bifurcations routes from
torus breakdown to homoclinic chaos following the Newhouse-Ruelle-Takens

Keywords : dc glow discharge ; torus breakdown ; homoclinic chaos ; route to

Ce travail sera publié en janvier 2018 dans International Journal of
Bifurcation and Chaos.