Exact one-loop QED actions in global ${(\mathrm{A})\mathrm{dS}}_2$

Chiang-Mei Chen, Sang Pyo Kim, Cristian Andres Rivera Medina

Using the in-out formalism, we derive the exact one-loop QED effective actions for spinor field in a uniform electric field in two-dimensional global (anti-)de Sitter (A)dS${}_2$ spa…