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

R. De Luca; T. Di Matteo; A. Tuohimaa; J. Paasi

doi:10.1016/S0375-9601(98)00399-5

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

R. De Luca, T. Di Matteo, A. Tuohimaa, J. Paasi

Not published at VTT

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4 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	301-306
Number of pages	6
Journal	Physics Letters, Section A: General, Atomic and Solid State Physics
Volume	245
Issue number	3-4
DOIs	https://doi.org/10.1016/S0375-9601(98)00399-5
Publication status	Published - 17 Aug 1998
MoE publication type	A1 Journal article-refereed

Keywords

Josephson effects
Magnetic properties
SQUIDS

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10.1016/S0375-9601(98)00399-5

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abstract = "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 βL. We show that the usual interference patterns obtained for βL = 0 and for vanishingly small junction to loop area ratios are enriched by new features when βL 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.",

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AU - De Luca, R.

AU - Di Matteo, T.

AU - Tuohimaa, A.

AU - Paasi, J.

PY - 1998/8/17

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N2 - 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 βL. We show that the usual interference patterns obtained for βL = 0 and for vanishingly small junction to loop area ratios are enriched by new features when βL 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.

AB - 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 βL. We show that the usual interference patterns obtained for βL = 0 and for vanishingly small junction to loop area ratios are enriched by new features when βL 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.

KW - Josephson effects

KW - Magnetic properties

KW - SQUIDS

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JF - Physics Letters, Section A: General, Atomic and Solid State Physics

IS - 3-4

ER -

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

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Keywords

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