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Published on: August 26, 2018
Frenetic steering: Nonequilibrium-enabled navigation
Bram Lefebvre1, Christian Maes1
1Department of Physics and Astronomy, KU Leuven, B-3001 Leuven, Belgium.
Scientists steer slow movements by coupling them to driven components with tunable reactivities. This control strategy can generate nonlinear limit cycles and strange attractors, with potential applications in biological systems.
Area of Science:
- Nonlinear dynamics
- Statistical mechanics
- Complex systems
Background:
- Controlling slow degrees of freedom in complex systems is challenging.
- Existing methods often lack precision or broad applicability.
- Understanding emergent behaviors in driven systems is crucial.
Purpose of the Study:
- To present a novel strategy for steering slow degrees of freedom.
- To demonstrate the feasibility of this control method.
- To explore potential applications in physics and biology.
Main Methods:
- Coupling slow degrees of freedom to driven components.
- Manipulating time-symmetric reactivities of these components.
- Analyzing emergent dynamics using examples like the van der Pol oscillator and Lorenz system.
Main Results:
- Demonstrated successful steering of slow dynamics.
- Observed emergence of nonlinear limit cycles and strange attractors.
- Showcased the effect of tuning 'frenesy' (driving intensity) on system behavior.
Conclusions:
- The proposed strategy offers a feasible method for controlling slow variables in driven systems.
- Frenetic control provides a powerful tool for generating complex dynamics.
- This approach may offer insights into biological self-organization and functioning.
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