Holographic Schwinger effect in a soft wall AdS/QCD model * *Supported by the NSFC (11705166) and the Fundamental Research Funds for the Central Universities, China University of Geosciences (Wuhan) (CUGL180402)

Abstract

We perform a potential analysis for the holographic Schwinger effect in a deformed model with conformal invariance broken by a background dilaton. We evaluated the static potential by analyzing the classical action of a string attached to a rectangular Wilson loop on a probe D3 brane located at an intermediate position in the bulk AdS space. We observed that the inclusion of the chemical potential tends to enhance the production rate, which is opposite to the effect of the confining scale. In addition, we calculated the critical electric field based on the Dirac-Born-Infeld (DBI) action.