Delay-Controlled Heterogeneous Nucleation in Adaptive Dynamical Networks

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Main Authors: Anand, R., Fialkowski, Jan, Chandrasekar, V. K., Suresh, R.
Format: Preprint
Published: 2026
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author Anand, R.
Fialkowski, Jan
Chandrasekar, V. K.
Suresh, R.
author_facet Anand, R.
Fialkowski, Jan
Chandrasekar, V. K.
Suresh, R.
contents Phase transitions constitute fundamental mechanisms underlying abrupt or qualitative changes in the collective dynamics of interacting units across a wide range of natural and engineered systems. In dynamical networks, such transitions lead to significant reorganization in the coordinated behavior of coupled elements. In adaptive dynamical networks, the connectivity evolves dynamically in response to the states of the nodes, resulting in a coevolution of structure and dynamics. In this work, we report two distinct forms of heterogeneous nucleation that give rise to single-step and multi-step phase transitions toward global synchronization in finite-size adaptive networks with connection delays. We demonstrate that the nature of the nucleation transition is governed by both the presence and magnitude of the delay, as well as the class of natural frequency distribution. Using a collective coordinate framework, we develop a mean-field description of cluster dynamics and derive an analytical upper bound condition for the existence of two-cluster states, which shows excellent agreement with numerical simulations. Furthermore, we extend the analysis to systems with distributed delays and obtain corresponding analytical conditions. Our results provide a theoretical framework for understanding synchronization transitions in adaptive networks with time-delayed interactions.
format Preprint
id arxiv_https___arxiv_org_abs_2604_04428
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Delay-Controlled Heterogeneous Nucleation in Adaptive Dynamical Networks
Anand, R.
Fialkowski, Jan
Chandrasekar, V. K.
Suresh, R.
Adaptation and Self-Organizing Systems
Phase transitions constitute fundamental mechanisms underlying abrupt or qualitative changes in the collective dynamics of interacting units across a wide range of natural and engineered systems. In dynamical networks, such transitions lead to significant reorganization in the coordinated behavior of coupled elements. In adaptive dynamical networks, the connectivity evolves dynamically in response to the states of the nodes, resulting in a coevolution of structure and dynamics. In this work, we report two distinct forms of heterogeneous nucleation that give rise to single-step and multi-step phase transitions toward global synchronization in finite-size adaptive networks with connection delays. We demonstrate that the nature of the nucleation transition is governed by both the presence and magnitude of the delay, as well as the class of natural frequency distribution. Using a collective coordinate framework, we develop a mean-field description of cluster dynamics and derive an analytical upper bound condition for the existence of two-cluster states, which shows excellent agreement with numerical simulations. Furthermore, we extend the analysis to systems with distributed delays and obtain corresponding analytical conditions. Our results provide a theoretical framework for understanding synchronization transitions in adaptive networks with time-delayed interactions.
title Delay-Controlled Heterogeneous Nucleation in Adaptive Dynamical Networks
topic Adaptation and Self-Organizing Systems
url https://arxiv.org/abs/2604.04428