Astronomy and Astrophysics – Astrophysics
Scientific paper
1994-06-26
Astronomy and Astrophysics
Astrophysics
10 pages uuencoded PostScript (figures included), (A trivial mathematical error leading to an erroneous conclusion is correcte
Scientific paper
Results are reported from a numerical investigation of orbits in a truncated Toda potential which is perturbed by weak friction and noise. Two significant conclusions are shown to emerge: (1) Despite other nontrivial behaviour, configuration, velocity, and energy space moments associated with these perturbations exhibit a simple scaling in the amplitude of the friction and noise. (2) Even very weak friction and noise can induce an extrinsic diffusion through cantori on a time scale much shorter than that associated with intrinsic diffusion in the unperturbed system.
Habib Salman
Kandrup Henry E.
Mahon Mary Elaine
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