Fundamental physics on natures of the macroscopic vacuum under high intense electromagnetic fields with accelerators

TL;DR

This paper explores how combining high-intensity electromagnetic fields with accelerators can probe the fundamental nature of the macroscopic vacuum, revealing nonlinear QED effects and potential new fields like dark energy.

Contribution

It proposes novel experimental approaches using laser-laser and laser-electron interactions to investigate vacuum properties and related phenomena such as Hawking-Unruh radiation.

Findings

Potential observation of nonlinear QED effects

Proposed detection of light scalar and pseudo scalar fields

Recent experimental efforts to observe Hawking-Unruh radiation

Abstract

High intense electromagnetic fields can be unique probes to study natures of macroscopic vacua by themselves. Combining accelerators with the intense field can provide more fruitful probes which can neither be achieved by only intense fields nor only high energy accelerators. We will overview the natures of vacua which can be accessible via intense laser-laser and intense laser-electron interactions. In the case of the laser-laser interaction, we propose how to observe nonlinear QED effects and effects of new fields like light scalar and pseudo scalar fields which may contribute to a macroscopic nature of our universe such as dark energy. In the case of the laser-electron interaction, in addition to nonlinear QED effects, we can further discuss the nature of accelerating field in the vacuum where we can access physics related with event horizons such as Hawking-Unruh radiations. We will introduce a recent experimental trial to search for this kind of odd radiations.