Potential analysis of holographic Schwinger effect in the magnetized background

TL;DR

This paper investigates how magnetic fields influence the holographic Schwinger effect at high energies using AdS/CFT, revealing that magnetic fields facilitate pair production by reducing potential barriers.

Contribution

It provides a comparative analysis of weak and strong magnetic field effects on the Schwinger effect within a holographic framework, highlighting the magnetic field's role in pair production.

Findings

Maximum pair separation length decreases with increasing magnetic field.

Magnetic field reduces potential barrier and critical field, promoting Schwinger effect.

Strong magnetic field enhances the effect when pairs are perpendicular to the magnetic field.

Abstract

We study the holographic Schwinger effect with magnetic field at RHIC and LHC energies by using the AdS/CFT correspondence. We consider both weak and strong magnetic field cases with $B\ll T^2$ and $B\gg T^2$ solutions respectively. Firstly, we calculate separating length of the particle pairs at finite magnetic field. It is found that for both weak and strong magnetic field solutions the maximum value of separating length decreases with the increase of magnetic field , which can be inferred that the virtual electron-positron pairs become real particles more easily. We also find that the magnetic field reduces the potential barrier and the critical field for the weak magnetic field solution, thus favors the Schwinger effect. With strong magnetic field solution, the magnetic field enhances the Schwinger effect when the pairs are in perpendicular to the magnetic field although the magnetic field increases the critical electric field.