TY  - JOUR
AU  - Ferreiro, A.
AU  - Navarro-Salas, J.
PY  - 2018
DA  - 2018//
TI  - Pair creation in electric fields, anomalies, and renormalization of the electric current
T2  - Phys. Rev. D
JO  - Physical Review D
SP  - 125012
EP  - 13pp
VL  - 97
IS  - 12
PB  - Amer Physical Soc
AB  - We investigate the Schwinger pair production phenomena in spatially homogeneous strong electric fields. We first consider scalar QED in four-dimensions and discuss the potential ambiguity in the adiabatic order assignment for the electromagnetic potential required to fix the renormalization subtractions. We argue that this ambiguity can be solved by invoking the conformal anomaly when both electric and gravitational backgrounds are present. We also extend the adiabatic regularization method for spinor QED in two-dimensions and find consistency with the chiral anomaly. We focus on the issue of the renormalization of the electric current < j(mu)> generated by the created pairs. We illustrate how to implement the renormalization of the electric current for the Sauter pulse.
SN  - 2470-0010
UR  - http://arxiv.org/abs/1803.03247
UR  - https://doi.org/10.1103/PhysRevD.97.125012
DO  - 10.1103/PhysRevD.97.125012
LA  - English
N1  - WOS:000435335000014
ID  - Ferreiro+Navarro-Salas2018
ER  -