3 papers
physics.plasm-ph2026
Probing vacuum birefringence in an Ultrastrong Laser Field via High-energy Gamma-ray Polarimetry
Da-Lin Wang, Xian-Zhang Wu, Rui-Qi Qin +5
Vacuum birefringence (VB), a fundamental prediction of nonlinear quantum electrodynamics (QED), has eluded direct laboratory detection due to its extreme weakness. We propose a com…
physics.acc-ph2025
All-Optical Generation of Dense, Multi-GeV, Longitudinally-Polarized Positron Beams
Rui-Qi Qin, Peng-Pei Xie, Yan-Fei Li +6
The production of high-yield, longitudinally polarized positron beams represents an outstanding challenge in advanced accelerator science. Laser-driven schemes offer a compact alte…
physics.plasm-ph2024
Achieving High Polarization of Photons Emitted by Unpolarized Electrons in Ultrastrong Laser Fields
Xian-Zhang Wu, Yan-Fei Li, Yu-Tong Li
Nonlinear Compton scattering driven by ultraintense lasers presents a promising avenue for enhancing the photon energy, brilliance, and setup compactness of -ray sources. Howeve…