title: Ratchet effect and the transporting islands in the chaotic sea.
abstract: We study directed transport in a classical deterministic dissipative system. We consider the generic case of mixed phase space and show that large ratchet currents can be generated thanks to the presence, in the Hamiltonian limit, of transporting stability islands embedded in the chaotic sea. Because of the simultaneous presence of chaos and dissipation the stationary value of the current is independent of initial conditions, except for initial states with very small measure.
authors.affiliation: Department of Physics and Centre for Computational Science and Engineering, National University of Singapore, Singapore 117542, Republic of Singapore.
authors.forename: Lei
authors.initials: L
authors.lastname: Wang
authors.forename: Giuliano
authors.initials: G
authors.lastname: Benenti
authors.forename: Giulio
authors.initials: G
authors.lastname: Casati
authors.forename: Baowen
authors.initials: B
authors.lastname: Li