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Chaotic universe model
1Department of Physics, Faculty of Science, Istanbul University, Istanbul, 34134, Turkey. ekrem.aydiner@istanbul.edu.tr.
Scientific Reports
|January 17, 2018
Summary
The study reveals that nonlinear interactions between dark energy, dark matter, and radiation exhibit chaotic dynamics, evidenced by strange attractors. This chaotic universe evolution model may resolve major cosmological problems.
Area of Science:
- Cosmology
- Astrophysics
- Theoretical Physics
Background:
- The universe's evolution is governed by components like dark energy, dark matter, matter, and radiation.
- Understanding the nonlinear interactions between these components is crucial for a complete cosmological model.
- Existing models often simplify these complex interactions.
Purpose of the Study:
- To propose a simple interaction model for cosmic components within the Friedman-Robertson-Walker spacetime.
- To investigate the dynamics of these interactions using Lotka-Volterra type equations.
- To explore the potential of this model in addressing unresolved cosmological issues.
Main Methods:
- Developed a model for nonlinear interactions between dark energy, dark matter, matter, and radiation.
- Utilized Lotka-Volterra type equations to describe the time evolution of component densities.
- Numerically solved coupling equations to analyze interaction dynamics.
Main Results:
- Demonstrated that interactions lead to Lotka-Volterra type equations.
- Identified strange attractors in the dynamics for specific parameter ranges (0 > w_de > -1, w_dm ≥ 0, w_m ≥ 0, w_r ≥ 0).
- Confirmed chaotic dynamics through positive Lyapunov exponents, indicating a chaotic universe evolution.
Conclusions:
- The time evolution of the universe is characterized by chaotic dynamics.
- The proposed model offers a new perspective on universe evolution and may resolve cosmological problems like singularity and cosmic coincidence.
- Establishes a connection between biological species dynamics and cosmic evolution.
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