Correlated transport through junction arrays in the small Josephson energy limit: incoherent Cooper-pairs and hot electrons

We study correlated transport in a Josephson junction array for small Josephson energies. In this regime transport is dominated by Cooper-pair hopping, although we observe that quasiparticles can not be neglected. We assume that the energy dissipated by a Cooper-pair is absorbed by the intrinsic imp...

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Bibliographic Details
Published inNew journal of physics Vol. 16; no. 6; pp. 63019 - 19
Main Authors Cole, Jared H, Leppäkangas, Juha, Marthaler, Michael
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 12.06.2014
Subjects
73.23.Hk
85.25.Cp
Arrays
Cooper pairs
correlated electronic transport
Correlation
Correlation analysis
coulomb blockade
Dissipation
Hot electrons
Impedance
Josephson junction array
Josephson junctions
Physics
superconductivity
Transport
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Summary:We study correlated transport in a Josephson junction array for small Josephson energies. In this regime transport is dominated by Cooper-pair hopping, although we observe that quasiparticles can not be neglected. We assume that the energy dissipated by a Cooper-pair is absorbed by the intrinsic impedance of the array. This allows us to formulate explicit Cooper-pair hopping rates without adding any parameters to the system. We show that the current through the array is correlated and crucially, these correlations rely fundamentally on the interplay between the Cooper-pairs and equilibrium quasiparticles.
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ISSN:1367-2630
1367-2630
DOI:10.1088/1367-2630/16/6/063019