Electron-positron pair production in strong oscillating electric field with multi-pulse structure

TL;DR

This paper studies electron-positron pair creation in a strong, oscillating electric field with multiple pulses, revealing interference patterns and how pulse timing affects production rates.

Contribution

It introduces a numerical analysis of pair production with multi-pulse electric fields, highlighting the interference effects due to pulse timing.

Findings

Multi-pulse structures induce a time-domain interference pattern in pair production.

Inter-pulse delay significantly influences the total particle yield.

Numerical solutions of the Dirac equation reveal detailed momentum distributions.

Abstract

We investigate electron-positron pair production from the vacuum in presence of a strong oscillating electric field with a multi-pulse structure and variable inter-pulse delay. The pair production probabilities are computed by numerically solving the time-dependent Dirac equation. We analyze the resulting momentum distribution and the total number density of produced particles for different numbers of pulses and inter-pulse delays. In particular, we demonstrate the emergence of a characteristic time-domain multi-slit interference pattern in the pair production probability as a function of the inter-pulse delay.