Title: Comments on QED with background electric fields
Abstract:It is well known that there is a total cancellation of factorizable infrared (IR) divergences in unitary interacting field theories, such as quantum electrodynamics (QED) and quantum gravity. In this ...It is well known that there is a total cancellation of factorizable infrared (IR) divergences in unitary interacting field theories, such as quantum electrodynamics (QED) and quantum gravity. In this paper, we show that such a cancellation does not happen in QED with background electric fields that can produce pairs. There is no factorization of IR divergences.Read More