Summary
A general method, whose consistency was checked, is proposed for taking into account self-interaction in classical physics. The finite radiation terms are identical to those given by Dirac's method. Moreover, by means of analytic continuation, a formula is found which reduces the computation of self-interaction terms to mere inspection.
Riassunto
Si propone un modello generale, di cui è stata verificata la consistenza, per tener conto delle autointerazioni nella fisica classica. I termini di radiazione finiti risultano identici a quelli forniti dal metodo di Dirao. Inoltre, per mezzo della continuazione analitica, si trova una formula che riconduce il calcolo dei termini di autointerazione a una semplice ispezione.
Резюме
Предлагается общий метод, непротиворечивость которого проверяется, для рассмотрения собственного взаимодействия в классической физике. Конечные радиационные члены оказываются тождественными членам, которые получаются в методе Дирака. Кроме того, с помощью аналитического продолжения получается формула, которая сводит вычисление членов собственного взаимодействия к простому рассмотрению.
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This property is necessary for the method to give unambiguous results.
Schumutzer ref. (5) has proposed to take into account self-interaction by means of such formal expansions in powers of σ, but it is easy to show that for higher derivatives such a procedure is not consistent in the sense emphasized here and moreover does not yield results in agreement with Dirac's.
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Traduzione a cura della Redazione.
Перевебено ребакцией.
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Damour, T. A new and consistent method for classical renormalization. Nuov Cim B 26, 157–164 (1975). https://doi.org/10.1007/BF02755544
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DOI: https://doi.org/10.1007/BF02755544