On the asymptotic behavior of effective QED at finite temperature

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2003-11-01

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Tomazelli, J. L.
Costa, L. C.

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Springer

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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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European Physical Journal C. New York: Springer-verlag, v. 31, n. 2, p. 239-243, 2003.