title: Dynamics of a small neutrally buoyant sphere in a fluid and targeting in Hamiltonian systems.
abstract: We show that, even in the most favorable case, the motion of a small spherical tracer suspended in a fluid of the same density may differ from the corresponding motion of an ideal passive particle. We demonstrate furthermore how its dynamics may be applied to target trajectories in Hamiltonian systems.
authors.affiliation: Laboratoire de Meteorologie Dynamique, Ecole Normale Superieure, F-75231 Paris, France. babiano@ella.ens.fr
authors.forename: A
authors.initials: A
authors.lastname: Babiano
authors.forename: J H
authors.initials: JH
authors.lastname: Cartwright
authors.forename: O
authors.initials: O
authors.lastname: Piro
authors.forename: A
authors.initials: A
authors.lastname: Provenzale