The origin of the highest energy cosmic rays is still unknown. The discovery of their sources
is expected to reveal the workings of the most energetic astrophysical accelerators in the …

Abstract The Particle-In-Cell (PIC) method has been developed by Oscar Buneman, Charles
Birdsall, Roger W. Hockney, and John Dawson in the 1950s and, with the advances of …

The interest in relativistic beam-plasma instabilities has been greatly rejuvenated over the
past two decades by novel concepts in laboratory and space plasmas. Recent advances in …

Many competing linear instabilities are likely to occur in astrophysical settings, and it is
important to assess which one grows faster for a given situation. An analytical model …

Recent work on Fermi acceleration at ultra-relativistic shock waves has demonstrated the
need for strong amplification of the background magnetic field on very short scales …

This review aims at providing an up-to-date status and a general introduction to the subject
of the numerical study of energetic particle acceleration and transport in turbulent …

ABSTRACT Plasma instabilities (eg, Buneman, Weibel, and other two-stream instabilities)
excited in collisionless shocks are responsible for particle (electron, positron, and ion) …

Enhancement of the quality of laser wake-field accelerated (LWFA) electron beams implies
the improvement and controllability of the properties of the wake waves generated by ultra …

In the study of relativistic jets one of the key open questions is their interaction with the
environment. Here we study the initial evolution of both electron–proton (${e}^{\mbox {--}} …

Fermi acceleration can take place at ultra-relativistic shock waves if the upstream or
downstream magnetic field has been remodelled so that most of the magnetic power lies on …