Strongly enhanced pair production in combined high- and low-frequency laser fields

TL;DR

This paper demonstrates that combining high- and low-frequency laser fields significantly enhances particle-antiparticle pair production, overcoming suppression effects seen with individual components, and suggests experimental feasibility with current laser technology.

Contribution

It introduces a novel mechanism where combined laser fields amplify pair production, providing a new approach to study nonperturbative quantum electrodynamics phenomena.

Findings

Combined laser fields greatly increase pair production probability.

Suppression in individual fields is overcome by their combination.

Predictions are testable with existing high-intensity lasers.

Abstract

Production of particle-antiparticle pairs by a high-energy probe photon propagating through a high-intensity laser field is considered in the nonperturbative interaction regime. The laser field consists of a strong low-frequency and a weak high-frequency component. While for each component alone photoproduction of pairs is strongly suppressed, we show that their combination can largely amplify the pair production probability by facilitating to bridge the energetic barrier of the process. Our predictions can be tested by utilizing presently available high-intensity laser devices.