| Texto completo | |
| Autor(es): |
Viana, R. L.
;
Souza, L. C.
;
Sales, M. R.
;
Mugnaine, M.
;
Szezech, J. D., Jr.
;
Caldas, I. L.
;
Marwan, N.
;
Kurths, J.
Número total de Autores: 8
|
| Tipo de documento: | Artigo Científico |
| Fonte: | RECURRENCE PLOTS AND THEIR QUANTIFICATIONS: METHODOLOGICAL BREAKTHROUGHS AND INTERDISCIPLINARY DISCOVERIES; v. N/A, p. 14-pg., 2025-01-01. |
| Resumo | |
In quasi-integrable Hamiltonian systems, certain chaotic orbits become trapped around periodic islands for extended periods before escaping to the chaotic sea, a phenomenon known as stickiness. In fusion plasmas, the stickiness effect manifests in the prolonged trapping of magnetic field lines in a specific region for many toroidal turns, influencing plasma transport. We apply here a novel concept based on recurrence plots, revealing the existence of a hierarchical structure of islands around islands where chaotic orbits become trapped. This analysis is conducted for a Hamiltonian system describing the magnetic field lines in a Tokamak. Furthermore, utilizing this quantifier, we can distinguish between different levels of this structure and compute the cumulative distribution of trapping times. (AU) | |
| Processo FAPESP: | 18/03211-6 - Dinâmica não linear |
| Beneficiário: | Iberê Luiz Caldas |
| Modalidade de apoio: | Auxílio à Pesquisa - Temático |
| Processo FAPESP: | 23/16146-6 - Dinâmica e transporte em redes de mapas simpléticos não lineares |
| Beneficiário: | Leonardo Costa de Souza |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |
| Processo FAPESP: | 23/08698-9 - Processos de transporte em sistemas Hamiltonianos |
| Beneficiário: | Matheus Rolim Sales |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |