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First-order synchronization transition in a large population of strongly coupled relaxation oscillators

Calugaru, Dumitru ; Totz, Jan Frederik ; Martens, Erik A. LU orcid and Engel, Harald (2020) In Science Advances 6(39).
Abstract

Onset and loss of synchronization in coupled oscillators are of fundamental importance in understanding emergent behavior in natural and man-made systems, which range from neural networks to power grids. We report on experiments with hundreds of strongly coupled photochemical relaxation oscillators that exhibit a discontinuous synchronization transition with hysteresis, as opposed to the paradigmatic continuous transition expected from the widely used weak coupling theory. The resulting first-order transition is robust with respect to changes in network connectivity and natural frequency distribution. This allows us to identify the relaxation character of the oscillators as the essential parameter that determines the nature of the... (More)

Onset and loss of synchronization in coupled oscillators are of fundamental importance in understanding emergent behavior in natural and man-made systems, which range from neural networks to power grids. We report on experiments with hundreds of strongly coupled photochemical relaxation oscillators that exhibit a discontinuous synchronization transition with hysteresis, as opposed to the paradigmatic continuous transition expected from the widely used weak coupling theory. The resulting first-order transition is robust with respect to changes in network connectivity and natural frequency distribution. This allows us to identify the relaxation character of the oscillators as the essential parameter that determines the nature of the synchronization transition. We further support this hypothesis by revealing the mechanism of the transition, which cannot be accounted for by standard phase reduction techniques.

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author
; ; and
publishing date
type
Contribution to journal
publication status
published
in
Science Advances
volume
6
issue
39
article number
eabb2637
publisher
American Association for the Advancement of Science (AAAS)
external identifiers
  • scopus:85091544453
  • pmid:32967828
ISSN
2375-2548
DOI
10.1126/sciadv.abb2637
language
English
LU publication?
no
additional info
Funding Information: J.F.T. and H.E. thank SFB 910 and GRK 1558. D.C. and J.F.T. thank DAAD RISE 2017, and D.C. thanks Trinity College, Cambridge for Trinity Summer Studentship Scheme 2017. Publisher Copyright: © 2020 American Association for the Advancement of Science. All rights reserved. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
id
89557a85-0ef8-4e0b-8451-66b6e10465b5
date added to LUP
2021-03-19 21:19:55
date last changed
2024-07-11 11:35:14
@article{89557a85-0ef8-4e0b-8451-66b6e10465b5,
  abstract     = {{<p>Onset and loss of synchronization in coupled oscillators are of fundamental importance in understanding emergent behavior in natural and man-made systems, which range from neural networks to power grids. We report on experiments with hundreds of strongly coupled photochemical relaxation oscillators that exhibit a discontinuous synchronization transition with hysteresis, as opposed to the paradigmatic continuous transition expected from the widely used weak coupling theory. The resulting first-order transition is robust with respect to changes in network connectivity and natural frequency distribution. This allows us to identify the relaxation character of the oscillators as the essential parameter that determines the nature of the synchronization transition. We further support this hypothesis by revealing the mechanism of the transition, which cannot be accounted for by standard phase reduction techniques.</p>}},
  author       = {{Calugaru, Dumitru and Totz, Jan Frederik and Martens, Erik A. and Engel, Harald}},
  issn         = {{2375-2548}},
  language     = {{eng}},
  number       = {{39}},
  publisher    = {{American Association for the Advancement of Science (AAAS)}},
  series       = {{Science Advances}},
  title        = {{First-order synchronization transition in a large population of strongly coupled relaxation oscillators}},
  url          = {{http://dx.doi.org/10.1126/sciadv.abb2637}},
  doi          = {{10.1126/sciadv.abb2637}},
  volume       = {{6}},
  year         = {{2020}},
}