Abstract
It is suggested that the difference between the normal and the superconducting state is that the individual electronic states in the proximity of the Fermi level are standing wave states. Superconductivity may then be understood as a condensation of standing wave states. All other properties of superconductors and specifically their electrodynamic behavior are direct consequences of this single property. The London relation may be understood as a microscopic relation of single particles. The understanding gained provides a path for design of new superconductors.
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Acknowledgements
Avi Schiller is remembered warmly for intensive discussions and critical review of the formalism. Roger Kornberg is greatly appreciated for a critical review of the manuscript and very instructive remarks. Roald Hoffmann is greatly appreciated for a critical review of the manuscript. Robert Loughlin is acknowledged for stimulating discussions.
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Gatt, R. Is a Superconductor a Perfect Insulator?. J Supercond Nov Magn 33, 1345–1355 (2020). https://doi.org/10.1007/s10948-019-05387-z
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DOI: https://doi.org/10.1007/s10948-019-05387-z