Seminario

Il giorno 27 gennaio alle ore 15 presso l'aula 412, Ivo Schulthess (ETH Zurich) terra' un seminario dal titolo

A Roadmap to Strong-Field QED: Concepts, Experiments, and the LUXE Program

Abstract

Strong-field QED describes the interaction of charged particles and photons with electromagnetic fields so intense that non-linear and non-perturbative effects become experimentally accessible, enabling phenomena such as non-linear Compton scattering and non-linear Breit–Wheeler pair production. These effects are not only of fundamental interest in the laboratory but are also relevant to extreme astrophysical environments, such as the magnetospheres of neutron stars. This talk provides a roadmap of strong-field QED, introducing the key concepts and physical regimes and reviewing the main experimental approaches pursued today, including crystals, beam–beam interactions, and collisions between electrons or photons and high-intensity laser pulses. Particular emphasis is placed on the LUXE experiment at DESY, which will probe this regime with high precision using the 16.5 GeV electron beam of the European XFEL and an ultra-intense optical laser. Finally, the potential of high-energy photons from strong-field interactions for beam-dump–type new physics searches is discussed.