We consider a symplectic map for magnetic field lines in a tokamak with an ergodic limiter, whose function is to generate a perturbing magnetic field which causes the formation of chaotic field lines in the vicinity of the tokamak inner wall. We analyze numerically the onset of global chaos due...

We show differences of the synchronization basins of two Matsumoto-Chua's circuit (operating in either the Rössler-type attractor regime or the Double-Scroll-type attractor regime), coupled unidirectionally or bidirectionally through a negative feed-back controller. The knowledge of the...

We analyze fluctuating observables of high-dimensional systems as the New York Stock Market S&P 500 index, the amino-acid sequence in the M. genitalium DNA, the maximum temperature of the San Francisco Bay area, and the toroidal magneto plasma potential. The probability measures of these...

We present results from experiments on electrostatic and magnetic fluctuations in TBR Brazilian tokamak. The observed electrostatic turbulence induces anomalous particle transport that deteriorates the plasma confinement. We describe how to control this effect, by decreasing plasma turbulence,...