Abstract
The problem of the spontaneous pair creation in strong electromagnetic fields is considered in the adiabatic switching formalism. The existence of a critical value of the strength of the external field at which the behaviour of the pair production probability has an abrupt change is proved.
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Nenciu, G. Existence of the spontaneous pair creation in the external field approximation of Q.E.D.. Commun.Math. Phys. 109, 303–312 (1987). https://doi.org/10.1007/BF01215224
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DOI: https://doi.org/10.1007/BF01215224