title: Diversity of discrete breathers observed in a josephson ladder
abstract: We generate and observe discrete rotobreathers in Josephson junction ladders with open boundaries. Rotobreathers are localized excitations that persist under the action of a spatially uniform force. We find a rich variety of stable dynamic states including pure symmetric, pure asymmetric, and mixed states. The parameter range where the discrete breathers are observed in our experiment is limited by retrapping due to dissipation.
authors.affiliation: Physikalisches Institut III, Universitat Erlangen-Nurnberg, Erwin-Rommel-Strasse 1, D-91058 Erlangen, Germany.
authors.initials: P
authors.lastname: Binder
authors.initials: D
authors.lastname: Abraimov
authors.initials: AV
authors.lastname: Ustinov