Transient Chaos in Dissipatively Perturbed, Near-Integrable Hamiltonian Systems

Abstract
When near-integrable Hamiltonians systems are perturbed by dissipation, then the stable orbits become simple attracting sinks, the Kolmogorov-Arnol'd-Moser tori are destroyed, and persistent chaotic motion disappears. We determine analytically the mean lifetime, the quasistatic distribution, and the fraction trapped into the various sinks for a dissipatively perturbed area-preserving twist map.