Quantum interference in parallel Josephson junction arrays: a perturbative analysis for finite inductances

We study the magnetic field dependence of the maximum Josephson current in a homogeneous parallel array of Josephson junctions in the limit of very small values of the characteristic inductance parameter β L . We show that the usual interference patterns obtained for β L = 0 and for vanishingly smal...

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Bibliographic Details
Published in:Physics letters. A 1998-08, Vol.245 (3), p.301-306
Main Authors: De Luca, R., Di Matteo, T., Tuohimaa, A., Paasi, J.
Format: Article
Language:English
Subjects:
Josephson effects
Magnetic properties
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Summary:We study the magnetic field dependence of the maximum Josephson current in a homogeneous parallel array of Josephson junctions in the limit of very small values of the characteristic inductance parameter β L . We show that the usual interference patterns obtained for β L = 0 and for vanishingly small junction to loop area ratios are enriched by new features when β L is finite, but still small enough to allow a perturbative analysis of the problem, and when the single junction interference pattern is taken into account.
ISSN:0375-9601
1873-2429
DOI:10.1016/S0375-9601(98)00399-5