Effect of disorder on synchronization in prototype two-dimensional Josephson arrays
A. S. Landsberg, Y. Braiman, K. Wiesenfeld
DOI 10.1103/PhysRevB.52.15458 · Physical Review B
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Abstract
We study the effects of quenched disorder on the dynamics of two-dimensional arrays of overdamped Josephson junctions. Disorder in both the junction critical currents and resistances is considered. Analytical results for small arrays are used to identify a physical mechanism which promotes frequency locking across each row of the array, and to show that no such locking mechanism exists between rows. The intrarow locking mechanism is surprisingly strong, so that a row can tolerate large amounts of disorder before frequency locking is destroyed.
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