Describing intrinsic noise in Chua's circuit

Publication date: Available online 4 June 2018Source: Physics Letters AAuthor(s): Flavio Prebianca, Holokx A. Albuquerque, Marcus W. BeimsAbstractIn this Letter we demonstrate that intrinsic inevitable noise effects, existing in realistic experiments with electronic circuits, are properly described theoretically using a Gaussian noise. For this we integrate numerically the equations of motion from the Chua circuit using a fourth-order stochastic Runge–Kutta integrator. Periodic structures in parameter space, related to periodic motion, start to be destroyed when the noise intensity is increased and vanish at a critical intensity value, for which only chaotic motion remains. We find the appropriate noise intensity interval which satisfactorily reproduces the parameter space from the corresponding experiment and it is in remarkable agreement with the estimated experimental noise. Present achievements should be applicable to describe noise effects in a wide number of electronic circuits.

Source: Physics Letters A - July 14, 2018 Category: Physics Source Type: research