Observation of breathers in Josephson ladders
Condensed Matter
2009-10-31 v2
Abstract
We report on the observation of spatially-localized excitations in a ladder of small Josephson junctions. The excitations are whirling states which persist under a spatially-homogeneous force due to the bias current. These states of the ladder are visualized using a low temperature scanning laser microscopy. We also compute breather solutions with high accuracy in corresponding model equations. The stability analysis of these solutions is used to interpret the measured patterns in the I-V characteristics.
Keywords
Cite
@article{arxiv.cond-mat/9905277,
title = {Observation of breathers in Josephson ladders},
author = {P. Binder and D. Abraimov and A. V. Ustinov and S. Flach and Y. Zolotaryuk},
journal= {arXiv preprint arXiv:cond-mat/9905277},
year = {2009}
}