21–27 Sept 2025
Hotel Hermitage, La Biodola Bay, Isola d'Elba, Italy
Europe/Rome timezone

Modeling laser-wakefield accelerators using the time-averaged ponderomotive approximation in a Lorentz boosted frame

23 Sept 2025, 17:20
20m
Sala Elena (Hotel Hermitage)

Sala Elena

Hotel Hermitage

Oral contribution PS4: Theory and simulations PS4: Theory and simulations

Speaker

Francesco Massimo (LPGP - CNRS)

Description

Future, high-fidelity simulations of multi-GeV-class Laser Wakefield Accelerators (LWFAs) will need to model the propagation of high-intensity laser drivers over meter-scale plasmas with high spatial and temporal resolutions, thus requiring high amounts of computational resources.

Various techniques have been devised over the years to reduce the computational cost of such simulations, including the time-averaged ponderomotive approximation, and the use of the Lorentz boosted frame technique.

In this presentation the combination of these two computational techniques will be discussed, highlighting the resulting significant reduction in the computational cost of LWFA simulations and the limitations of this approach.

The combination of the two techniques can potentially become essential for the modeling of a multi-TeV, LWFA-based collider.

Authors

Francesco Massimo (LPGP - CNRS) Carlo Benedetti (LBNL) Davide Terzani (Lawrence Berkeley National Laboratory) Arnaud Beck (Laboratoire Leprince Ringuet) Brigitte Cros (CNRS - LPGP - Universite Paris Saclay)

Presentation materials