Nonlinear extensions of the Dirac equation and their implications in QED

D. C. Ionescu, J. Reinhardt, B. Müller, W. Greiner, and G. Soff
Phys. Rev. A 38, 616 – Published 1 July 1988
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Abstract

We investigate the influence of additional nonlinear terms in the Dirac Lagrangian on strongly bound electron states in heavy and superheavy atoms. Upper bounds for the coupling constants are deduced by comparison with precision spectroscopy data in QED. We demonstrate that nonlinear interactions may cause significant modifications of electron binding energies in superheavy quasiatomic systems which would not be visible in ordinary atomic-physics measurements.

  • Received 23 December 1987

DOI:https://doi.org/10.1103/PhysRevA.38.616

©1988 American Physical Society

Authors & Affiliations

D. C. Ionescu, J. Reinhardt, B. Müller, and W. Greiner

  • Institut für Theoretische Physik, J. W. Goethe–Universität, Robert-Mayer-Strasse 8-10, D-6000 Frankfurt am Main, Federal Republic of Germany

G. Soff

  • Gesellschaft für Schwerionenforschung (GSI), Planckstrasse 1, Postfach 110 552, D-6100 Darmstadt, Federal Republic of Germany

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Issue

Vol. 38, Iss. 2 — July 1988

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