Probing the Strong-field QED Based on Ultra Intense Laser

Contemporarily, with the rapid development of laser techniques, the laser plasma interaction is entering the quantum electrodynamics regime. This study provides a comprehensive analysis of recent advances in the study of strong-field quantum electrodynamics (SF-QED) effects in recent years, especially since 2020. The research details the remarkable developments in laser technology, especially the chirped pulse amplification (CPA) technique, WHICH emphasizes the study of ultrahigh-intensity lasers interacting with electron beams, reaching laser intensities in excess of 10^23 W/cm^2. The paper also explores the theoretical framework of QED, focusing on particle generation, spin-related events and their importance in applications such as vacuum birefringence and photon angular momentum effects, and observes key QED effects like nonlinear Compton scattering or multiphoton B-W pair generation. In addition, important QED applications including vacuum birefringence and angular momentum photon effects are discussed. Finally, it is summarized that although the theoretical part of QED is well established and has strong theoretical support, experimental studies are still being followed up. The current strong-field QED experiments have limitations, and looking ahead, with the progress of laser science, future breakthroughs in laser intensity and experimental methods will further promote the development of QED research.