Propagation properties of the Pearcey Gaussian vortex electron plasma wave.

In this Letter, we present an analytical discussion about the propagation properties of the Pearcey Gaussian vortex electron plasma (PGVEP) wave in an unmagnetized, collision-free plasma. Specifically, we examine the intensity, potential, energy flow density, and angular momentum density of the wave. Our findings reveal that the PGVEP wave exhibits the property of self-focusing, and intriguingly, it also demonstrates self-acceleration. Furthermore, we investigate the influence of the topological charge on the aforementioned propagation characteristics, considering the cases when the charge is n = 1 and n = 2, respectively. [ABSTRACT FROM AUTHOR]