On the physical interpretation of effective actions using Schwinger's formula
L. C. de Albuquerque, C. Farina, Silvio J. Rabello, Arvind N. Vaidya
Abstract
We show explicitly that Schwinger's formula for one-loop effective actions corresponds to the summation of energies associated with the zero-point oscillations of the fields. We begin with a formal proof, and after that we confirm it using a regularization prescription.
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