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Updated: Aug 19, 2026

An Analog Macroscopic Technique for Studying Molecular Hydrodynamic Processes in Dense Gases and Liquids
Published on: December 4, 2017
Nonlinear dynamics of gravity and matter creation in a cosmology with an unbounded Hamiltonian
Gursoy B Akguc1, L E Reichl, E V Derishev
1Center for Studies in Statistical Mechanics and Complex Systems, The University of Texas at Austin, Austin, TX 78712, USA.
Abstract:
Nonlinear dynamics and stability properties of a cosmological model of spatially homogeneous coupled gravity and matter fields is analyzed using methods of classical mechanics. The system exhibits regions of chaos and dramatic changes in structural stability as the strength of the coupling between the fields is varied. Numerical simulations suggest that Hamiltonian systems with structure appropriate for describing matter-gravity interaction constitute a new class of nonlinear systems with very unusual and rich dynamics.
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