Diffusion measurements in a 3DoF Hamiltonian flow

We present measurements of diffusion phenomenae in the phase space of a three degree of freedom guasz-integrable Hamiltonian flow. By tracking the evolution of the variance of ensembles of test particles, we characterize the diffusion as basically anomalous. We find a time range in which it can be c...

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Autores principales: Mestre, Martín Federico, Cincotta, Pablo Miguel, Giordano, Claudia Marcela
Formato: Objeto de conferencia
Lenguaje:Inglés
Publicado: 2011
Materias:
Ciencias Astronómicas
measurements
diffusion phenomenae
Hamiltonian flow
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/167644
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-167644
record_format dspace
spelling I19-R120-10915-1676442024-07-01T20:02:34Z http://sedici.unlp.edu.ar/handle/10915/167644 Diffusion measurements in a 3DoF Hamiltonian flow Mestre, Martín Federico Cincotta, Pablo Miguel Giordano, Claudia Marcela 2011-07 2012 2024-07-01T16:44:42Z en Ciencias Astronómicas measurements diffusion phenomenae Hamiltonian flow We present measurements of diffusion phenomenae in the phase space of a three degree of freedom guasz-integrable Hamiltonian flow. By tracking the evolution of the variance of ensembles of test particles, we characterize the diffusion as basically anomalous. We find a time range in which it can be considered as a subdiffusion process and other in which it can be considered as a normal diffusion process. In the former case we fit Hurst exponents and in the latter case we compute diffusion coefficients based on the rate of growth of the variances. Facultad de Ciencias Astronómicas y Geofísicas Instituto de Astrofísica de La Plata Objeto de conferencia Objeto de conferencia http://creativecommons.org/licenses/by-nc-sa/4.0/ Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0) application/pdf 319-344
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Astronómicas
measurements
diffusion phenomenae
Hamiltonian flow
spellingShingle Ciencias Astronómicas
measurements
diffusion phenomenae
Hamiltonian flow
Mestre, Martín Federico
Cincotta, Pablo Miguel
Giordano, Claudia Marcela
Diffusion measurements in a 3DoF Hamiltonian flow
topic_facet Ciencias Astronómicas
measurements
diffusion phenomenae
Hamiltonian flow
description We present measurements of diffusion phenomenae in the phase space of a three degree of freedom guasz-integrable Hamiltonian flow. By tracking the evolution of the variance of ensembles of test particles, we characterize the diffusion as basically anomalous. We find a time range in which it can be considered as a subdiffusion process and other in which it can be considered as a normal diffusion process. In the former case we fit Hurst exponents and in the latter case we compute diffusion coefficients based on the rate of growth of the variances.
format Objeto de conferencia
Objeto de conferencia
author Mestre, Martín Federico
Cincotta, Pablo Miguel
Giordano, Claudia Marcela
author_facet Mestre, Martín Federico
Cincotta, Pablo Miguel
Giordano, Claudia Marcela
author_sort Mestre, Martín Federico
title Diffusion measurements in a 3DoF Hamiltonian flow
title_short Diffusion measurements in a 3DoF Hamiltonian flow
title_full Diffusion measurements in a 3DoF Hamiltonian flow
title_fullStr Diffusion measurements in a 3DoF Hamiltonian flow
title_full_unstemmed Diffusion measurements in a 3DoF Hamiltonian flow
title_sort diffusion measurements in a 3dof hamiltonian flow
publishDate 2011
url http://sedici.unlp.edu.ar/handle/10915/167644
work_keys_str_mv AT mestremartinfederico diffusionmeasurementsina3dofhamiltonianflow
AT cincottapablomiguel diffusionmeasurementsina3dofhamiltonianflow
AT giordanoclaudiamarcela diffusionmeasurementsina3dofhamiltonianflow
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