Studies on particle creation during the universe expansion with a laser system

TL;DR

This paper proposes using a laser system with colliding intense beams as an analog model to study particle creation during universe expansion, demonstrating feasible photon generation that mimics cosmological phenomena.

Contribution

It introduces a novel laser-based analog system to simulate and study particle creation during cosmic expansion phases.

Findings

Several hundreds of photons can be generated under feasible conditions

The system can mimic particle creation during inflation

Laser setup provides a controllable model for cosmological particle creation

Abstract

While two highly intensive laser beams collide, they create a region where the refractive index varies so quickly that photons are created. The variance of the refractive index is analog to the universe scale factor variance. Therefore, this laser system can be an analog to the expansion of the universe. We find that several hundreds of photons can be created under feasible conditions. This system can demonstrate the particle creation during inflation or other similar periods.