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

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Journal Title
Journal ISSN
Volume Title
School of Science | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Date
2004
Major/Subject
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.
Description
Keywords
Josephson junctions, shot noise, IV curves, Coulomb blockade, Cooper pairs
Other note
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.