On the numerical method of Casimir energy renormalization in the presence of logarithmical divergencies

Details On the numerical method of Casimir energy renormalization in the presence of logarithmical divergencies On the numerical method of Casimir energy renormalization in the presence of logarithmical divergencies

2005-01-24

arxiv.org/abs/hep-th/0501187v1

Physics

High Energy Physics

High Energy Physics - Theory

10 pages, 3 figures. To appear in the procedings of the 13th International Seminar on High Energy Physics Quarks'2004

Scientific paper

A non-subtractive recipe of Casimir energy renormalization efficient in the presence of logarithmically divergent terms is proposed. It is demonstrated that it can be applied even then, when energy levels can be obtained only numerically and neither their asymptotical behavior, nor the analytic form of spectral equation is known. The results of calculations performed with this method are compared to those obtained by means of explicit subtraction of divergent terms from energy.

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