Pair creation in boost-invariantly expanding electric fields and two-particle correlations

TL;DR

This paper investigates scalar particle pair creation in a boost-invariant electric field, analyzing the evolution of momentum distributions and two-particle correlations, revealing potential long-range rapidity correlations from the Schwinger mechanism.

Contribution

It introduces a detailed analysis of pair creation and correlations in a boost-invariant electric field, highlighting the emergence of long-range correlations.

Findings

Momentum distributions preserve boost invariance

Two-particle correlations exhibit long-range rapidity correlations

Schwinger mechanism can produce observable long-range correlations

Abstract

Pair creation of scalar particles in a boost-invariant electric field which is confined in the forward light cone is studied. We present the proper-time evolution of momentum distributions of created particles, which preserve the boost invariance of the background field. The two-particle correlation of the created particles is also calculated. We find that long-range rapidity correlations may arise from the Schwinger mechanism in the boost-invariant electric field.