Resonant Josephson Current Through a Quantum Dot (original) (raw)

Abstract

We calculate the DC Josephson current through a semiconducting quantum dot which is weakly coupled by tunnel barriers to two superconducting reservoirs. A Breit-Wigner resonance in the conductance corresponds to a resonance in the critical current, but with a different (non-lorentzian) lineshape. For equal tunnel rates MATHTYPE through the two barriers, the zero-temperature critical current on resonance is given by (e/ℏ)Δ0h0/(Δ0 + Г0) (with Δ0 the superconducting energy gap).

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Authors and Affiliations

  1. Philips Research Laboratories, NL-5600, JA Eindhoven, The Netherlands
    C. W. J. Beenakker & H. van Houten
  2. Institute for Theoretical Physics, University of California, Santa Barbara, CA, 93106, USA
    C. W. J. Beenakker

Authors

  1. C. W. J. Beenakker
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  2. H. van Houten
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Editor information

Editors and Affiliations

  1. Physikalisch-Technische Bundesanstalt, Institut Berlin, Abbestrasse 2-12, W-1000, Berlin 10, Fed. Rep. of Germany
    Hans Koch & Heinz Lübbig &

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© 1992 Springer-Verlag Berlin Heidelberg

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Beenakker, C.W.J., van Houten, H. (1992). Resonant Josephson Current Through a Quantum Dot. In: Koch, H., Lübbig, H. (eds) Single-Electron Tunneling and Mesoscopic Devices. Springer Series in Electronics and Photonics, vol 31. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-77274-0\_20

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