arXiv:0901.0424·v3·High Energy Physics — Phenomenology
Comments on QED with background electric fields
E.T. Akhmedov (ITEP, Moscow)🇷🇺 · E.T. Musaev (ITEP, Moscow)🇷🇺
Abstract
It is well known that there is a total cancellation of the \emph{factorizable} IR divergences in unitary interacting field theories, such as QED and quantum gravity. In this note we show that such a cancellation does not happen in QED with background electric fields which can produce pairs. There is no factorization of the IR divergences.
Comments: 14 pages, 1 figure