Observation of Shot-Noise-Induced Asymmetry in the Coulomb Blockaded Josephson Junction

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© 2004 American Physical Society (APS). This is the accepted version of the following article: Lindell, R. K. & Delahaye, J. & Sillanpää, Mika A. & Heikkilä, T. T. & Sonin, E. B. & Hakonen, P. J. 2004. Observation of Shot-Noise-Induced Asymmetry in the Coulomb Blockaded Josephson Junction. Physical Review Letters. Volume 93, Issue 19. 197002/1-4. ISSN 0031-9007 (printed). DOI: 10.1103/physrevlett.93.197002, which has been published in final form at http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.93.197002.

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Journal ISSN

Volume Title

School of Science | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Date

2004

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Mcode

Degree programme

Language

en

Pages

197002/1-4

Series

Physical Review Letters, Volume 93, Issue 19

Abstract

We have investigated the influence of shot noise on the IV curves of a single mesoscopic Josephson junction. We observe a linear enhancement of zero-bias conductance of the Josephson junction with increasing shot-noise power. Moreover, the IV curves become increasingly asymmetric. Our analysis on the asymmetry shows that the Coulomb blockade of Cooper pairs is strongly influenced by the non-Gaussian character of the shot noise.

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Keywords

Josephson junctions, shot noise, IV curves, Coulomb blockade, Cooper pairs

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Citation

Lindell, R. K. & Delahaye, J. & Sillanpää, Mika A. & Heikkilä, T. T. & Sonin, E. B. & Hakonen, P. J. 2004. Observation of Shot-Noise-Induced Asymmetry in the Coulomb Blockaded Josephson Junction. Physical Review Letters. Volume 93, Issue 19. 197002/1-4. ISSN 0031-9007 (printed). DOI: 10.1103/physrevlett.93.197002.