Nonperturbative quantum electrodynamics: The Lamb shift
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The nonlinear integro-differential equation, obtained from the coupled Maxwell-Dirac equations by eliminating the potential Aμ, is solved by iteration rather than perturbation. The energy shift is complex, the imaginary part giving the spontaneous emission. Both self-energy and vacuum polarization terms are obtained. All results, including renormalization terms, are finite.
KeywordsImaginary Part Spontaneous Emission Energy Shift Quantum Electrodynamic Vacuum Polarization
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- 1.P. A. M. Dirac,Europhysics 8, 1 (1977); andProceedings of the Conference on Particle Physics, Budapest, 1977 (Central Inst. of Physics Report KFK1-1977-62).Google Scholar
- 2.F. Rohrlich, inFoundations of Radiation Theory and Quantum Electrodynamics, A. O. Barut, ed. (Plenum Press, New York, 1980), p. 155.Google Scholar
- 3.A. O. Barut, inFoundations of Radiation Theory and Quantum Electrodynamics, A. O. Barut, ed. (Plenum Press, New York, 1980), p. 165.Google Scholar
- 4.A. O. Barut and J. Kraus,Phys. Rev. D16, 161 (1977).Google Scholar
- 5.A. O. Barut, “Nonlinear Problems in Classical and Quantum Electrodynamics,” inLecture Notes in Physics, Volume 98, A. F. Rañada, ed. (Springer-Verlag, Berlin, 1979), p. 1.Google Scholar
- 6.J. B. French and V. F. Weisskopf,Phys. Rev. 75, 1240 (1949).Google Scholar
- 7.B. Davis,Am. J. Phys. 50, 331 (1982).Google Scholar
- 8.A. O. Barut and J. Kraus (to be published).Google Scholar
- 9.A. O. Barut and J. Kraus,Physica Scripta 25, 561 (1982).Google Scholar