Title :
Self-organising behavior of arrays of nonidentical Josephson junctions
Author :
Fortuna, Luigi ; Frasca, Mattia ; Rizzo, Alessandro
Author_Institution :
Dipt. Elettrico Elettronico e Sistemistico, Universita degli Studi di Catania, Italy
Abstract :
In this work the global behavior of a parallel array of Josephson junctions is investigated. The single junction, driven by a periodic forcing, behaves chaotically, and is locally coupled in an array of 128 junctions, closed on a parallel resistive load. The array exhibits spatio-temporal chaos. When a spatial diversity is applied, self-organization and pattern formation arise. Moreover, when the spatial diversity is generated by a chaotic law, the attitude of the system to synchronization increases.
Keywords :
chaos; superconducting arrays; superconducting junction devices; synchronisation; Josephson junctions; chaotic law; global behavior; locally coupled array; nonidentical Josephson junctions; parallel array; parallel resistive load; pattern formation; periodic forcing; self-organising behavior; spatial diversity; spatio-temporal chaos; Chaos; Frequency synchronization; Insulation; Josephson effect; Josephson junctions; Local oscillators; Pattern formation; Power generation; Superconductivity; Topology;
Conference_Titel :
Circuits and Systems, 2002. ISCAS 2002. IEEE International Symposium on
Print_ISBN :
0-7803-7448-7
DOI :
10.1109/ISCAS.2002.1010678
