Penentration of dynamic localized states in DC-driven Josephson junction ladders by discrete jumps
Pattern Formation and Solitons
2009-11-07 v1 Condensed Matter
Abstract
We give a theoretical study of unusual resistive (dynamic) localized states in anisotropic Josephson junction ladders, driven by a DC current at one edge. These states comprise nonlinearly coupled rotating Josephson phases in adjacent cells, and with increasing current they are found to expand into neighboring cells by a sequence of sudden jumps. We argue that the jumps arise from instabilities in the ladder's superconducting part, and our analytic expressions for the peculiar voltage (rotational frequency) ratios and I-V curves are in very good agreement with direct numerical simulations.
Keywords
Cite
@article{arxiv.nlin/0106041,
title = {Penentration of dynamic localized states in DC-driven Josephson junction ladders by discrete jumps},
author = {M. V. Fistul and J. B. Page},
journal= {arXiv preprint arXiv:nlin/0106041},
year = {2009}
}
Comments
Accepted, Physical Review E. 5 pages, 5 figures. Revtex, with postscript figures