Abstract.
The aim of this paper is to study finite temperature effects in effective quantum electrodynamics using Weisskopf’s zero-point energy method in the context of thermo field dynamics. After a general calculation for a weak magnetic field at fixed T, the asymptotic behavior of the Euler-Kockel-Heisenberg Lagrangian density is investigated focusing on the regularization requirements in the high temperature limit. In scalar QED the same problem is also discussed.
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Received: 14 June 2003, Revised: 14 August 2003, Published online: 2 October 2003
This revised version was published online in Oktober 2003 with corrections to the citation of equations in the text after equation (17).
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Tomazelli, J.L., Costa, L.C. On the asymptotic behavior of effective QED at finite temperature. Eur. Phys. J. C 31, 239–243 (2003). https://doi.org/10.1140/epjc/s2003-01329-7
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DOI: https://doi.org/10.1140/epjc/s2003-01329-7