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A minimal model of burst-noise induced bistability

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  • Johannes Falk
  • Marc Mendler
  • Barbara Drossel

Abstract

We investigate the influence of intrinsic noise on stable states of a one-dimensional dynamical system that shows in its deterministic version a saddle-node bifurcation between monostable and bistable behaviour. The system is a modified version of the Schlögl model, which is a chemical reaction system with only one type of molecule. The strength of the intrinsic noise is varied without changing the deterministic description by introducing bursts in the autocatalytic production step. We study the transitions between monostable and bistable behavior in this system by evaluating the number of maxima of the stationary probability distribution. We find that changing the size of bursts can destroy and even induce saddle-node bifurcations. This means that a bursty production of molecules can qualitatively change the dynamics of a chemical reaction system even when the deterministic description remains unchanged.

Suggested Citation

  • Johannes Falk & Marc Mendler & Barbara Drossel, 2017. "A minimal model of burst-noise induced bistability," PLOS ONE, Public Library of Science, vol. 12(4), pages 1-15, April.
    • Handle: RePEc:plo:pone00:0176410
    DOI: 10.1371/journal.pone.0176410
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