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dc.contributor.author
Cincotta, Pablo Miguel  
dc.contributor.author
Giordano, Claudia Marcela  
dc.contributor.author
Shevchenko, Ivan  
dc.date.available
2023-09-08T12:20:24Z  
dc.date.issued
2022-10  
dc.identifier.citation
Cincotta, Pablo Miguel; Giordano, Claudia Marcela; Shevchenko, Ivan; Diffusion and Lyapunov timescales in the Arnold model; American Physical Society; Physical Review E; 106; 4; 10-2022; 1-15  
dc.identifier.issn
2470-0045  
dc.identifier.uri
http://hdl.handle.net/11336/210884  
dc.description.abstract
In the present work, we focus on two dynamical timescales in the Arnold Hamiltonian model: the Lyapunov time and the diffusion time when the system is confined to the stochastic layer of its dominant resonance (guiding resonance). Following Chirikov's formulation, the model is revisited, and a discussion about the main assumptions behind the analytical estimates for the diffusion rate is given. On the other hand, and in line with Chirikov's ideas, theoretical estimations of the Lyapunov time are derived. Later on, three series of numerical experiments are presented for various sets of values of the model parameters, where both timescales are computed. Comparisons between the analytical estimates and the numerical determinations are provided whenever the parameters are not too large, and those cases are in fact in agreement. In particular, the case in which both parameters are equal is numerically investigated. Relationships between the diffusion time and the Lyapunov time are established, like an exponential law or a power law in the case of large values of the parameters.  
dc.format
application/pdf  
dc.language.iso
eng  
dc.publisher
American Physical Society  
dc.rights
info:eu-repo/semantics/openAccess  
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/  
dc.subject
CHAOTIC DIFFUSION  
dc.subject
LYAPUNOV TIME  
dc.subject
INSTABILITY TIME  
dc.subject.classification
Astronomía  
dc.subject.classification
Ciencias Físicas  
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CIENCIAS NATURALES Y EXACTAS  
dc.title
Diffusion and Lyapunov timescales in the Arnold model  
dc.type
info:eu-repo/semantics/article  
dc.type
info:ar-repo/semantics/artículo  
dc.type
info:eu-repo/semantics/publishedVersion  
dc.date.updated
2023-09-05T18:02:11Z  
dc.identifier.eissn
2470-0053  
dc.journal.volume
106  
dc.journal.number
4  
dc.journal.pagination
1-15  
dc.journal.pais
Estados Unidos  
dc.description.fil
Fil: Cincotta, Pablo Miguel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina  
dc.description.fil
Fil: Giordano, Claudia Marcela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto de Astrofísica La Plata. Universidad Nacional de La Plata. Facultad de Ciencias Astronómicas y Geofísicas. Instituto de Astrofísica La Plata; Argentina  
dc.description.fil
Fil: Shevchenko, Ivan. Saint Petersburg State University; Rusia  
dc.journal.title
Physical Review E  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://link.aps.org/doi/10.1103/PhysRevE.106.044205  
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1103/PhysRevE.106.044205