Collective plasma effects of electron-positron pairs in beam-driven QED cascades

Kenan Qu, Sebastian Meuren, Nathaniel J. Fisch

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


Understanding the interplay of strong-field QED and collective plasma effects is important for explaining extreme astrophysical environments like magnetars. It has been shown that QED pair plasma can be produced and observed by passing a relativistic electron beam through an intense laser field. This paper presents in detail multiple sets of 3D QED-particle-in-cell simulations to show the creation of pair plasma in the QED cascade. The beam driven method enables a high pair particle density and also a low particle Lorentz factor, which both play equal roles on exhibiting large collective plasma effects. Finite laser frequency upshift is observed with both ideal parameters (24 PW laser colliding with a 300 GeV electron beam) and with existing technologies (3 PW laser colliding with a 30 GeV electron beam).

Original languageEnglish (US)
Article number042117
JournalPhysics of Plasmas
Issue number4
StatePublished - Apr 1 2022

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics


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