Effect of repulsive links on frustration in attractively coupled networks

Sayantan Nag Chowdhury, Dibakar Ghosh, and Chittaranjan Hens
Phys. Rev. E 101, 022310 – Published 18 February 2020

Abstract

We investigate the impact of attractive-repulsive interaction in networks of limit cycle oscillators. Mainly we focus on the design principle for generating an antiphase state between adjacent nodes in a complex network. We establish that a partial negative control throughout the branches of a spanning tree inside the positively coupled limit cycle oscillators works efficiently well in comparison with randomly chosen negative links to establish zero frustration (antiphase synchronization) in bipartite graphs. Based on the emergence of zero frustration, we develop a universal 0π rule to understand the antiphase synchronization in a bipartite graph. Further, this rule is used to construct a nonbipartite graph for a given nonzero frustrated value. We finally show the generality of 0π rule by implementing it in arbitrary undirected nonbipartite graphs of attractive-repulsively coupled limit cycle oscillators and successfully calculate the nonzero frustration value, which matches with numerical data. The validation of the rule is checked through the bifurcation analysis of small networks. Our work may unveil the underlying mechanism of several synchronization phenomena that exist in a network of oscillators having a mixed type of coupling.

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  • Received 8 May 2019
  • Revised 24 June 2019
  • Accepted 31 January 2020

DOI:https://doi.org/10.1103/PhysRevE.101.022310

©2020 American Physical Society

Physics Subject Headings (PhySH)

Nonlinear DynamicsNetworks

Authors & Affiliations

Sayantan Nag Chowdhury, Dibakar Ghosh, and Chittaranjan Hens

  • Physics and Applied Mathematics Unit, Indian Statistical Institute, 203 B. T. Road, Kolkata-700108, India

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Issue

Vol. 101, Iss. 2 — February 2020

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