Title:	Numerical studies of future experiments in the field of high-intensity laser-matter interactions
DNr:	NAISS 2025/5-174
Project Type:	NAISS Medium Compute
Principal Investigator:	Arkady Gonoskov <arkady.gonoskov@physics.gu.se>
Affiliation:	Göteborgs universitet
Duration:	2025-04-01 – 2026-04-01
Classification:	10303
Homepage:	https://www.gu.se/en/research/plasma-physics
Keywords:

Abstract

The project is a continuation of an ongoing activity on designing modern experiments and data processing strategies in the field of high-intensity laser-matter interactions. There is currently a great interest in understanding how applied and fundamental research can make use of the new generation of large-scale high-intensity laser facilities both in Sweden (the Relativistic Attosecond Physics Laboratory at Umeå University and the Lund Laser Centre), Europe (the Extreme Light Infrastructure, Apollon, and Vulcan) and worldwide (CORELS in South Korea, J-KAREN-P in Japan, and others). This research area is characterized by a broad range of possible layouts, such as laser-solid, laser-gas and laser-electron-beam interactions, and applications, which include compact particle and radiation sources, for industrial and medical use, and studies of fundamental physics, such as strong-field quantum electrodynamics (SFQED). Due to high degree of nonlinearity, geometrical complexity and scale differences, numerical simulations play an important role in theoretical analysis and design of new initiatives. Our group has made distinguished contributions to this field and is currently playing a crucial role in national and international collaborations. During the forthcoming year, we will work on the following sub-projects: (1) developing multi-stage laser-wakefield acceleration (LWFA) by merging exhausted an wakefield plasma structure with properly phased and oriented laser drivers; (2) using photon acceleration in a particle-beam-driven plasma wake for producing radiation with unique properties; (3) using ML-assisted approximate Bayesian computations for obtaining fundamental insight in SFQED from laser-electron collisions; (4) designing experiments on QED pair production and polarization effects in laser-electron collision experiments; (5) considering the role of particle and gamma photon interactions in high-density QED cascades driven by intense laser radiation.