Reversibility and noise sensitivity of Josephson arrays
Kwok Yeung Tsang, Renato E. Mirollo, Steven H. Strogatz, Kurt Wiesenfeld
DOI 10.1103/PhysRevLett.66.1094 · Physical Review Letters
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Abstract
We predict that series arrays of point-contact Josephson junctions, shunted by a resistive load, should be unusually sensitive to noise. This behavior stems from a dynamical symmetry which prohibits the existence of in-phase attractors. Simulations verify that breaking the symmetry can radically improve the phase-locking performance of the array.
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