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Finite-emittance Wigner crystals in the bubble regime

Published online by Cambridge University Press:  23 July 2020

Lars Reichwein*
Affiliation:
Institut für Theoretische Physik I, Heinrich-Heine-Universität Düsseldorf, D-40225Düsseldorf, Germany
*
Author for correspondence: L. Reichwein, Heinrich-Heine-Universität Düsseldorf, D-40225 Düsseldorf, Germany. E-mail: lars.reichwein@hhu.de

Abstract

We study the influence of finite-emittance electron bunches in the bubble regime of laser-driven wakefield acceleration onto the microscopic structure of the bunch itself. Using resilient backpropagation (Rprop) to find the equilibrium structure, we observe that for realistic and already observed emittances the previously found crystalline structures remain intact and are only widened marginally. Higher emittances lead to larger electron displacements within the crystal and finally its breaking.

Type
Research Article
Copyright
Copyright © The Author(s) 2020. Published by Cambridge University Press

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