We propose a tangible experimental scheme for demonstrating quantum entanglement between swift electrons and light, relying on coherent cathodoluminescence for photon generation in a transmission electron microscope, and a quantum eraser setup for formation and verification of entanglement. The entanglement of free electrons with light is key to developing free-electron quantum optics and its potential applications such as quantum sensing, novel photonic and electron state generation, and entanglement between free electrons.
@article{arxiv.2404.11368,
title = {Quantum eraser experiments for the demonstration of entanglement between swift electrons and light},
author = {Jan-Wilke Henke and Hao Jeng and Claus Ropers},
journal= {arXiv preprint arXiv:2404.11368},
year = {2025}
}