The dynamics of three three-dimensional repressilators globally coupled by a quorum sensing mechanism was numerically studied. This number (three) of coupled repressilators is sufficient to obtain such a set of self-consistent oscillation frequencies of signal molecules in the mean field that results in the appearance of self-organized quasiperiodicity and its complex evolution over wide areas of model parameters. Numerically analyzing the invariant curves as a function of coupling strength, we observed torus doubling, three torus arising via quasiperiodic Hopf bifurcation, the emergence of resonant cycles, and secondary Neimark–Sacker bifurcation. A gradual increase in the oscillation amplitude leads to chaotizations of the tori and to the birth of weak, but multidimensional chaos.
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April 2020
Research Article|
April 16 2020
Evolution of quasiperiodicity in quorum-sensing coupled identical repressilators
N. Stankevich
;
N. Stankevich
1
Laboratory of Topological Methods in Dynamics, National Research University High School of Economics, Nizhny Novgorod
, 25/12 Bolshay Pecherskaya str., Nizhny Novgorod 603155, Russia
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E. Volkov
E. Volkov
2
Department of Theoretical Physics, Lebedev Physical Institute
, Moscow 119991, Leninsky Prospect, 53, Russia
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a)
Author to whom correspondence should be addressed: stankevichnv@mail.ru
b)
Also at: Department of Radio-Electronics and Telecommunications, Yuri Gagarin State Technical University of Saratov, 77 Politekhnicheskaya str., Saratov 410054, Russia and Department of Applied Cybernetics, St. Petersburg State University, Saint-Petersburg, Peterhof, 28 Universitetskiy proezd, St. Petersburg 198504, Russia.
Chaos 30, 043122 (2020)
Article history
Received:
November 30 2019
Accepted:
March 31 2020
Citation
N. Stankevich, E. Volkov; Evolution of quasiperiodicity in quorum-sensing coupled identical repressilators. Chaos 1 April 2020; 30 (4): 043122. https://doi.org/10.1063/1.5140696
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