<> "The repository administrator has not yet configured an RDF license."^^ . <> . . "Analytical and Numerical Methods for High-Precision Studies in Ultrarelativistic Strong-Field Quantum Electrodynamics"^^ . "This thesis presents a comprehensive exploration of both analytical and numerical techniques used to model processes in ultrarelativistic strong-field quantum electrodynamics (SFQED).\r\n%\r\nWe developed SFQEDtoolkit, an open-source library that employs advanced function approximation techniques to accurately model nonlinear Compton (NIC) emission and nonlinear Breit-Wheeler (NBW) pair creation processes.\r\n%\r\nSimulations combining particle-in-cell (PIC) codes with SFQEDtoolkit have been used to investigate collisions between ultrarelativistic dense electron beams and plasma targets, demonstrating that electron-positron jets exceeding solid densities can be produced within self-generated magnetic fields up to 10 MT.\r\n%\r\nThese findings reveal a novel regime where SFQED, atomic, and plasma physics are intrinsically interwoven, opening a new avenue of research in SFQED.\r\n%\r\nFurthermore, we derive analytical expressions for NIC and NBW differential distributions that describe the energy, angular, spin, and polarization characteristics of the produced particles.\r\n%\r\nNotably, the derivation of these distributions, following state-of-the-art methodologies, yields results that can give negative values over certain parameter intervals, undermining their probabilistic interpretation.\r\n%\r\nWe demonstrate that integrating these distributions over the ``formation time'' of the quantum process restores their conventional physical meaning.\r\n%\r\nOverall, the contributions of this thesis advance the analytical and numerical modeling of SFQED processes, providing a robust framework for forthcoming experimental studies of SFQED, which are critically relevant for extreme-field plasma physics and the microphysics of pulsars and magnetars."^^ . "2025" . . . . . . . . "Samuele"^^ . "Montefiori"^^ . "Samuele Montefiori"^^ . . . . . . "Analytical and Numerical Methods for High-Precision Studies in Ultrarelativistic Strong-Field Quantum Electrodynamics (Other)"^^ . . . . . . "preview.jpg"^^ . . . "Analytical and Numerical Methods for High-Precision Studies in Ultrarelativistic Strong-Field Quantum Electrodynamics (PDF)"^^ . . . . "erratum.pdf"^^ . . . "Analytical and Numerical Methods for High-Precision Studies in Ultrarelativistic Strong-Field Quantum Electrodynamics (Other)"^^ . . . . . . "indexcodes.txt"^^ . . . "Analytical and Numerical Methods for High-Precision Studies in Ultrarelativistic Strong-Field Quantum Electrodynamics (PDF)"^^ . . . "Samuele Montefiori - PhD thesis.pdf"^^ . . . "Analytical and Numerical Methods for High-Precision Studies in Ultrarelativistic Strong-Field Quantum Electrodynamics (Other)"^^ . . . . . . "lightbox.jpg"^^ . . . "Analytical and Numerical Methods for High-Precision Studies in Ultrarelativistic Strong-Field Quantum Electrodynamics (Other)"^^ . . . . . . "indexcodes.txt"^^ . . . "Analytical and Numerical Methods for High-Precision Studies in Ultrarelativistic Strong-Field Quantum Electrodynamics (Other)"^^ . . . . . . "lightbox.jpg"^^ . . . "Analytical and Numerical Methods for High-Precision Studies in Ultrarelativistic Strong-Field Quantum Electrodynamics (Other)"^^ . . . . . . "preview.jpg"^^ . . . "Analytical and Numerical Methods for High-Precision Studies in Ultrarelativistic Strong-Field Quantum Electrodynamics (Other)"^^ . . . . . . "medium.jpg"^^ . . . "Analytical and Numerical Methods for High-Precision Studies in Ultrarelativistic Strong-Field Quantum Electrodynamics (Other)"^^ . . . . . . "small.jpg"^^ . . . "Analytical and Numerical Methods for High-Precision Studies in Ultrarelativistic Strong-Field Quantum Electrodynamics (Other)"^^ . . . . . . "medium.jpg"^^ . . . "Analytical and Numerical Methods for High-Precision Studies in Ultrarelativistic Strong-Field Quantum Electrodynamics (Other)"^^ . . . . . . "small.jpg"^^ . . "HTML Summary of #36586 \n\nAnalytical and Numerical Methods for High-Precision Studies in Ultrarelativistic Strong-Field Quantum Electrodynamics\n\n" . "text/html" . . . "530 Physik"@de . "530 Physics"@en . .