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| Κύριος συγγραφέας: | |
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| Μορφή: | Recurso digital |
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Zenodo
2025
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| Διαθέσιμο Online: | https://doi.org/10.5281/zenodo.18017683 |
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Πίνακας περιεχομένων:
- <p>The transition to turbulence is characterized by universal scaling laws, specifically the Feigenbaum constants, which govern the onset of chaos in nonlinear systems. While these constants are traditionally viewed as topological invariants of the underlying dynamical maps, their observability in macroscopic physical systems is strictly conditioned by the separation of scales between the dynamics and the observer. We investigate this conditioning by simulating a stochastic Rössler system subject to a “Reynolds Filter,” a temporal averaging functional that mimics the coarse-graining inherent in thermodynamic observation. We demonstrate that the “onset of chaos” perceived by a macroscopic observer corresponds to the spectral leakage of subharmonic frequencies through the filter’s stopband. We show that the variance of the filtered macroscopic variable acts as a robust order parameter, exhibiting scaling behavior consistent with $\alpha^2$ at bifurcation points. Crucially, we find that “fragile” topological features, such as the period-3 window, are suppressed by the filter in the presence of noise, suggesting that the “universal” route to chaos observed in thermodynamic limits is a renormalized subset of the full topological hierarchy. This framework provides a bridge between the deterministic topology of strange attractors and the statistical mechanics of information closure.</p>