From synchronous to one-time delayed dynamics in coupled maps

TL;DR

This paper investigates how one-time delays affect synchronized states in coupled logistic maps, revealing regularization of chaos and enhanced synchronization, with findings applicable to various map types.

Contribution

It introduces a comprehensive analysis of delayed dynamics in coupled maps, demonstrating the effects of delay on synchronization and chaos, and tests robustness across different map functions.

Findings

Delay regularizes chaotic orbits

Short-range coupling enhances synchronization with delay

Results are consistent across different map types

Abstract

We study the completely synchronized states (CSSs) of a system of coupled logistic maps as a function of three parameters: interaction strength ($\varepsilon$), range of the interaction ($\alpha$), that can vary from first-neighbors to global coupling, and a parameter ($\beta$) that allows to scan continuously from non-delayed to one-time delayed dynamics. % We identify in the plane $\alpha$-$\varepsilon$ periodic orbits, limit cycles and chaotic trajectories, and describe how these structures change with the delay. These features can be explained by studying the bifurcation diagrams of a two-dimensional non-delayed map. This allows us to understand the effects of one-time delays on CSSs, e.g, regularization of chaotic orbits and synchronization of short-range coupled maps, observed when the dynamics is moderately delayed. Finally, we substitute the logistic map by cubic and logarithmic maps, in order to test the robustness of our findings.