Effective action for Dirac spinors in the uniform electromagnetic background fields
Roberto Soldati, Lorenzo Sorbo
Abstract
Some new expressions are found, concerning the effective action as a regularized path-integral for Dirac's spinors in 3+1 dimensions, in the presence of general uniform (i.e., constant and homogeneous) electric and magnetic fields. The rate of e+e- pairs production is computed and briefly discussed.
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