Quantum Reflection as a New Signature of Quantum Vacuum Nonlinearity

TL;DR

This paper proposes quantum reflection of photons in inhomogeneous electromagnetic fields as a new method to detect and study the nonlinearity of the quantum vacuum under strong field conditions.

Contribution

It introduces quantum reflection as a novel experimental signature for quantum vacuum nonlinearity, expanding the tools for probing quantum electrodynamics effects.

Findings

Quantum reflection occurs for photons in inhomogeneous fields.

Quantum reflection can serve as a new probe for quantum vacuum nonlinearity.

The approach offers a potential experimental method to study strong-field QED effects.

Abstract

We show that photons subject to a spatially inhomogeneous electromagnetic field can experience quantum reflection. Based on this observation, we propose quantum reflection as a novel means to probe the nonlinearity of the quantum vacuum in the presence of strong electromagnetic fields.