Chaotic hysteresis in an adiabatically oscillating double well
  We consider the motion of a damped particle in a potential oscillating slowly between a simple and a double well. The system displays hysteresis effects which can be of periodic or chaotic type. We explain this behaviour by computing an analytic expression of a Poincar'e map. 
N. Berglund, H. Kunz (Institut de Physique Th\'eorique, EPF-Lausanne,   Switzerland)