We report remarkable pattern formation of quasiperiodic domains in the two-dimensional parameter space of an intrinsically coupled system, comprising a rotor and a Duffing oscillator. In our analysis, we characterize the system using Lyapunov exponents, identifying self-similar islands composed of intricate regions of chaotic, quasiperiodic, and periodic behaviors. These islands form structures with an accumulation arrangement, denominated here as metamorphic tongues. Inside the islands, we observe Arnold tongues corresponding to periodic solutions. In addition, we surprisingly identify quasiperiodic shrimp-shaped domains that have been typically observed for periodic solutions. Similar features to the periodic case, such as period-doubling and secondary-near shrimp with three times the period, are observed in quasiperiodic shrimp as torus-doubling and torus-tripling.
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December 2024
Research Article|
December 13 2024
Quasiperiodic shrimp-shaped domains in intrinsically coupled oscillators
Special Collection:
From Sand to Shrimps: In Honor of Professor Jason A. C. Gallas
Silvio L. T. de Souza
;
Silvio L. T. de Souza
a)
(Conceptualization, Data curation, Formal analysis, Investigation, Methodology, Writing – original draft, Writing – review & editing)
1
Federal University of São João del-Rei
, Campus Centro-Oeste, 35501-296 Divinópolis, MG, Brazil
2
Institute of Physics, University of São Paulo
, 05508-900 São Paulo, SP, Brazil
a)Author to whom correspondence should be addressed: [email protected]
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Antonio M. Batista
;
Antonio M. Batista
(Conceptualization, Data curation, Formal analysis, Validation, Writing – original draft, Writing – review & editing)
3
Graduate Program in Science, State University of Ponta Grossa
, 84030-900 Ponta Grossa, PR, Brazil
4
Department of Mathematics and Statistics, State University of Ponta Grossa
, 84030-900 Ponta Grossa, PR, Brazil
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Rene O. Medrano-T
;
Rene O. Medrano-T
(Conceptualization, Validation, Writing – review & editing)
5
Department of Physics, Federal University of São Paulo, UNIFESPF
, Campus Diadema, 09913-030 Diadema, SP, Brazil
6
Department of Physics, São Paulo State University, UNESP/IGCE
, Campus Rio Claro, 13506-900 Rio Claro, SP, Brazil
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Iberê L. Caldas
Iberê L. Caldas
(Conceptualization, Formal analysis, Funding acquisition, Methodology, Writing – original draft, Writing – review & editing)
2
Institute of Physics, University of São Paulo
, 05508-900 São Paulo, SP, Brazil
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a)Author to whom correspondence should be addressed: [email protected]
Chaos 34, 123146 (2024)
Article history
Received:
August 23 2024
Accepted:
November 25 2024
Citation
Silvio L. T. de Souza, Antonio M. Batista, Rene O. Medrano-T, Iberê L. Caldas; Quasiperiodic shrimp-shaped domains in intrinsically coupled oscillators. Chaos 1 December 2024; 34 (12): 123146. https://doi.org/10.1063/5.0234904
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