Diversity of discrete breathers observed in a Josephson ladder

Details Diversity of discrete breathers observed in a Josephson ladder Diversity of discrete breathers observed in a Josephson ladder

2000-04-13

arxiv.org/abs/cond-mat/0004212v1

Physics

Condensed Matter

Superconductivity

5 pages, 6 figures

Scientific paper

10.1103/PhysRevE.62.2858

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.

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