Deterministic Chaos

In this work we study the dynamics of wave packets propagation of a few interacting quantum particles with different types of spatial inhomogeneity. Single particle or, equivalently, many noninteracting particles are localized in the case of spatial disorder, and experience localization–delocalization transition in the case of quasi-periodic inhomogeneity.

A new autonomous system with chaotic dynamics corresponding to Smale–Williams attractor in Poincare map is introduced. The system is constructed on the basis of the model with «figure-eight» separatrix on the phase plane discussed in former times by Y.I. Neimark. Our system is composed of two Neimark subsystems with generalized coordinates x and y. It is described by the equations with additional terms due to which the system becomes self-oscillating.

Описано электронное устройство, предназначенное для определения корреляционной размерности странных аттракторов из временной реализации одной переменной. В отличие от компьютерных систем прибор работает в масштабе реального времени. Дано математическое описание процедуры и представлена блок-схема прибора. Проведено измерение корреляционной размерности для генератора хаотических колебаний, представляющего собой LС-автогенератор с