Author

A. Pukhov

3 papers indexed here

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Preprint Oct 2026

QUARZ: a quasi-static particle-in-cell code with non-uniform radial grids for plasma wakefields

We present a quasi-static particle-in-cell scheme for beam-driven plasma wakefields in cylindrical geometry that works on an arbitrary non-uniform radial grid. The field equations are discretized with hat-function finite elements and conservative finite volumes on any monotone set of radial nodes, and the transverse ma...

A. Pukhov, T. Wilson · 1 citation

Preprint Nov 2026

First-principles simulation of free-electron lasers with the Galilean electromagnetic particle-in-cell method: even harmonics of planar undulators

Free-electron laser (FEL) codes average the electron motion over the undulator period and add the radiation harmonics through on-axis coupling factors. This is accurate for the fundamental, but the even harmonics of a planar undulator, which vanish on the axis, are not modelled at all. We show that the Galilean electro...

A. Pukhov · 0 citations

Preprint Oct 2026

GEM-PIC-RZ: a Galilean electromagnetic particle-in-cell code in quasi-cylindrical geometry with nonuniform grids

Laser-plasma accelerators span scales from the micrometre wavelength of the driving laser to acceleration lengths of millimetres or metres. Full particle-in-cell (PIC) simulations resolve the laser carrier but are constrained by the Courant condition, whereas quasi-static models are computationally efficient but do not...

A. Pukhov · 1 citation