Nonlinear extensions of the Dirac equation and their implications in QED

  • 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.

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Author:Dorin Cezar Ionescu, Joachim ReinhardtGND, Berndt MüllerORCiDGND, Walter GreinerGND, Gerhard SoffGND
Parent Title (German):Physical review A
Document Type:Article
Date of Publication (online):2006/07/07
Year of first Publication:1988
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2006/07/07
Page Number:5
First Page:616
Last Page:620
Institutes:Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
PACS-Classification:10.00.00 THE PHYSICS OF ELEMENTARY PARTICLES AND FIELDS (for experimental methods and instrumentation for elementary-particle physics, see section 29) / 12.00.00 Specific theories and interaction models; particle systematics / 12.20.-m Quantum electrodynamics / 12.20.Ds Specific calculations
Licence (German):License LogoDeutsches Urheberrecht