INSTITUTO DE ASTROFISICA LA PLATA
Unidad Ejecutora - UE
capítulos de libros
Diffusion measurements in 3DoF Hamiltonian Flow
MARTÍN MESTRE; PABLO CINCOTTA; CLAUDIA GIORDANO
3rd La Plata International School on Astronomy and Geophysics "Chaos, Diffusion and Non-integrability in Hamiltonian Systems-Application to Astronomy
Lugar: La Plata; Año: 2012; p. 319 - 344
We present measurements of diusion phenomenae in the phase space of a three degree of freedom quasiintegrable Hamiltonian ow. By tracking the evolution of the variance of ensembles of test particles, we characterize the diusion as basically anomalous. We nd a time range in which it can be considered as a subdiusion process and other in which it can be considered as a normal diusion process. In the former case we t Hurst exponents and in the latter case we compute diusion coecients based on the rate of growth of the variances.