Scalar QED Action Density and Schwinger Pair Production in (A)dS_2
Sang Pyo Kim
TL;DR
This paper reviews the scalar QED effective action and Schwinger pair production in (A)dS_2, introducing a method to compute the density of states and pair-production rate with a thermal interpretation.
Contribution
It presents a new method to determine the density of states and pair-production rate in scalar QED within (A)dS_2, connecting the Schwinger effect to an effective temperature.
Findings
Derived the QED action density in (A)dS_2
Established a thermal interpretation of the Schwinger effect
Proposed a novel method for density of states calculation
Abstract
We review the one-loop effective action in scalar QED and the Schwinger effect in a uniform electric field in a two-dimensional (anti-) de Sitter space. The Schwinger effect has a thermal interpretation in terms of the effective temperature introduced by Cai and Kim. We propose a method to find the density of states for the charged scalar and obtain the QED action density and the pair-production rate in the in-out formalism.
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