Breather decay into a vortex/anti-vortex pair in a Josephson Ladder
Superconductivity
2015-06-19 v1
Abstract
We present experimental evidence for a new behavior which involves discrete breathers and vortices in a Josephson Ladder. Breathers can be visualized as the creation and subsequent annihilation of vortex/anti-vortex pairs. An externally applied magnetic field breaks the vortex/anti-vortex symmetry and causes the breather to split apart. The motion of the vortex or anti-vortex creates multi-site breathers, which are always to one side or the other of the original breather depending on the sign of the applied field. This asymmetry in applied field is experimentally observed.
Keywords
Cite
@article{arxiv.1403.4520,
title = {Breather decay into a vortex/anti-vortex pair in a Josephson Ladder},
author = {K. Segall and P. Williams and O. Svitelskiy and D. Edwards and N. Zhelev and G. Brummer and J. J. Mazo},
journal= {arXiv preprint arXiv:1403.4520},
year = {2015}
}
Comments
10 pages, 5 figures