Revista Brasileira de Ensino de Física
versión impresa ISSN 1806-1117
NOGUEIRA, José Alexandre y MAIA JR., Adolfo. Demonstration of how the zeta function method for effective potential removes the divergences. Rev. Bras. Ensino Fís. [online]. 2002, vol.24, n.3, pp. 306-311. ISSN 1806-1117. http://dx.doi.org/10.1590/S1806-11172002000300008.
The calculation of the minimum of the e ective potential using the zeta function method is extremely advantagous, because the zeta function is regular at s = 0 and we gain immediately a finite result for the effective potential without the necessity of subtratction of any pole or the addition of infinite counter-terms. The purpose of this paper is to explicitly point out how the cancellation of the divergences occurs and that the zeta function method implicitly uses the same procedure used by Bollini-Giambiagi and Salam-Strathdee in order to gain -nite part of functions with a simple pole.