Tunable power law in the desynchronization events of coupled chaotic electronic circuits

TL;DR

This paper investigates how the amplitude of desynchronization events in coupled chaotic electronic circuits follows a tunable power-law distribution, with the exponent adjustable via coupling strength, revealing a new controllable complex system behavior.

Contribution

It demonstrates a system where the power-law exponent of desynchronization events can be dynamically tuned, unlike most systems with fixed exponents.

Findings

Power-law distribution of desynchronization event sizes in chaotic circuits.

Exponent of the power law can be adjusted by changing coupling strength.

System transitions through different synchronization regimes.

Abstract

We study the statistics of the amplitude of the synchronization error in chaotic electronic circuits coupled through linear feedback. Depending on the coupling strength, our system exhibits three qualitatively different regimes of synchronization: weak coupling yields independent oscillations; moderate to strong coupling produces a regime of intermittent synchronization known as attractor bubbling; and stronger coupling produces complete synchronization. In the regime of moderate coupling, the probability distribution for the sizes of desynchronization events follows a power law, with an exponent that can be adjusted by changing the coupling strength. Such power-law distributions are interesting, as they appear in many complex systems. However, most of the systems with such a behavior have a fixed value for the exponent of the power law, while here we present an example of a system where the exponent of the power law is easily tuned in real time.