File(s) under permanent embargo
Reason: This item is currently closed access.
Vortex-antivortex crystals, fractal structures, and orbital glasses in arrays of Josephson junctions
journal contributionposted on 2015-12-03, 11:35 authored by Derek Michael Forrester, K.E. Kuerten, Feodor Kusmartsev
We have found that for large varieties of one-dimensional arrangements of Josephson junctions, such as discrete Josephson transmission lines, stable vortex-anti-vortex structures may be spontaneously created. These highly complex stable, spatial configurations of Josephson vortices and anti-vortices also display fractal features in both the energy spectrum and the spatial ordering of the superconducting phase differences associated with different junctions. These vortex structures are related to an exponential number of local minima that are separated by very large barriers within the highly complex energy landscape. The novel Josephson vortex glass arises without any disorder, whilst the fractal energy spectrum involves weak interactions of Josephson vortices. The Josephson glass and its associated fractal properties may be experimentally detected by measuring the switching current distribution.
The work has been supported by the Europe an Science Foundation in the framework of the network-program “Arrays of Quantum Do ts and Josephson Junctions” and EPSRC grant GR/S05052/01
- Aeronautical, Automotive, Chemical and Materials Engineering
- Chemical Engineering
Published inMoldavian Journal of the Physical Sciences
Pages? - ? (15)
CitationFORRESTER, D.M., KUERTEN, K.E. and KUSMARTSEV, F.V., 2007. Vortex-antivortex crystals, fractal structures, and orbital glasses in arrays of Josephson junctions. Moldavian Journal of the Physical Sciences, 6 (3).
Publisher© Academy of Sciences of the Republic of Moldova
- VoR (Version of Record)
Publisher statementThis work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/
NotesThis paper is in closed access.