We present the first demonstration of multi-GeV laser wakefield acceleration in a fully
optically formed plasma waveguide, with an acceleration gradient as high as 25 GeV/m. The …

As the US Department of Energy (DOE) computing facilities began deploying petascale
systems in 2008, DOE was already setting its sights on exascale. In that year, DARPA …

Modeling plasma accelerators is a computationally challenging task and the quasi-static
particle-in-cell algorithm is a method of choice in a wide range of situations. In this work, we …

Preserving the quality of a positron beam in a plasma-based accelerator, where a wakefield
suitable for positron transport and acceleration is generated by means of an electron …

The new capabilities of the short focal length, high intensity beamline, named iP2, at the
BELLA Center will extend the reach of research in high energy density science, including …

Owing to their large accelerating gradients, plasma-based accelerators have attracted
considerable interest as potential drivers for future, compact electron–positron colliders …

The applications being developed within the US Exascale Computing Project (ECP) to run
on imminent Exascale computers will generate scientific results with unprecedented fidelity …

Computer modeling is essential to research on Advanced Accelerator Concepts (AAC), as
well as to their design and operation. This paper summarizes the current status and future …

After a summary of relevant comments and recommendations from various reports over the
last ten years, this paper examines the modeling needs in accelerator physics, from the …

A controlled transition between two different ion acceleration mechanisms would pave the
way to achieving different ion energies and spectral features within the same experimental …