Pair Production in a Uniform Electric Field |
| |
Authors: | Jaume Haro |
| |
Affiliation: | (1) Department de Matemàtica Aplicada I, ETSEIB, Universitat Politècnica de Catalunya, Diagonal 647, 08028 Barcelona, Spain |
| |
Abstract: | We study the Klein-Gordon field coupled with an external uniform vector potential. We compute pair production in a finite time t using the semiclassical approximation, and show that, after the interaction of the Klein-Gordon field with the external potential, when 0 the average number of produced pairs is zero. There is agreement with the classical limit because the classical limit involves no production of pairs. We compared our results with those of Schwinger. Finally we saw that the random variable N(t)= net number of pairs produced at time t is in the semiclassical limit a stochastic Poisson process. |
| |
Keywords: | pair production Schwinger's formula semiclassical approach |
本文献已被 SpringerLink 等数据库收录! |
|