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Coulomb Staircase

  1. Aug 31, 2007 #1
    I'm having trouble understanding the properties of the "coulomb staircase" using the average integer charge: <n> as a function of the gate charge. How would we go about getting this graph?

    http://www-drecam.cea.fr/drecam/spec/Pres/Quantro/Qsite/projects/qip.htm [Broken]

    It will be the last graph under the headline: "single cooper pair box".

    Thank you for your time.
    Last edited by a moderator: May 3, 2017
  2. jcsd
  3. Sep 7, 2007 #2


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    You have the Hamiltonian just to the right of the picture. In order to get the energy diagram as a function of Ng you need to solve the Schrödinger equation using this Hamiltonian.

    You can find more information in e.g. Tinkhams "Introduction to Superconductivity".
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