Schwinger Formula Revisited |
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| Authors: | Jaume Haro |
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| Institution: | (1) Departament de Matemàtica Aplicada I, Universitat Politècnica de Catalunya, Diagonal 647, 08028 Barcelona, Spain |
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| Abstract: | We apply the formal W.K.B. method in the complex plane to the quantum field theory to obtain the Schwinger formula for spin and spinless particles; i.e., we obtain the probability that the vacuum state remains unchanged in presence of a constant electric field. Finally, from Schwinger formula we calculate the probability that n pairs are produced. |
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| Keywords: | pair production Schwinger's formula semiclassical approach |
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