Nonlinear Sciences – Chaotic Dynamics
Scientific paper
2009-10-22
Physical Review E 82, 026211 (2010)
Nonlinear Sciences
Chaotic Dynamics
6 pages, 6 figures - Up to date with corrections suggested by referees
Scientific paper
10.1103/PhysRevE.82.026211
A great number of physical processes are described within the context of Hamiltonian scattering. Previous studies have rather been focused on trajectories starting outside invariant structures, since the ones starting inside are expected to stay trapped there forever. This is true though only for the deterministic case. We show however that, under finitely small random fluctuations of the field, trajectories starting inside Arnold-Kolmogorov-Moser (KAM) islands escape within finite time. The non-hyperbolic dynamics gains then hyperbolic characteristics due to the effect of the random perturbed field. As a consequence, trajectories which are started inside KAM curves escape with hyperbolic-like time decay distribution, and the fractal dimension of a set of particles that remain in the scattering region approaches that for hyperbolic systems. We show a universal quadratic power law relating the exponential decay to the amplitude of noise. We present a random walk model to relate this distribution to the amplitude of noise, and investigate this phenomena with a numerical study applying random maps.
de Moura Alessandro P. S.
Grebogi Celso
Rodrigues Christian S.
No associations
LandOfFree
Random fluctuation leads to forbidden escape of particles does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Random fluctuation leads to forbidden escape of particles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Random fluctuation leads to forbidden escape of particles will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-691247