Phase space dynamics after the breaking of a relativistic Langmuir wave in a thermal plasma
Anno: 2014
Autori: Grassi A., Fedeli L., Macchi A., Bulanov S. V., Pegoraro F.
Affiliazione autori: Department of Physics “Enrico Fermi”, University of Pisa, 56127 Pisa, Italy; National Institute of Optics, National Research Council (CNR/INO), 56127 Pisa, Italy; QuBS, Japan Atomic Energy Agency, 1-8-7 Umemidai, Kizugawa, 619-0215 Kyoto, Japan
Abstract: The relativistic Vlasov equation is integrated numerically in an Eulerian framework in order to
investigate the phase space development of the wavebreak of a relativistic Langmuir wave in a thermal
plasma. Relativistic kinematic and beam loading effects lead to a “differential retardation” in the time
required by the electrons to evolve in phase space, the largest momentum electrons taking the longest
time. This leads to the formation of a long lasting spike in momentum space at the wavebreak position
that propagates with a velocity close to the speed of light and to an extremely steep density change in
coordinate space.
Giornale/Rivista: EUROPEAN PHYSICAL JOURNAL D
Volume: 68 (6) Da Pagina: 178 A: 178
Parole chiavi: Vlasov equation; Vlasov-Maxwell simulation; wavebreaking; electron wakefield acceleration; laser-plasma interactionsDOI: 10.1140/epjd/e2014-50153-0Citazioni: 8dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-04-14Riferimenti tratti da Isi Web of Knowledge: (solo abbonati) Link per visualizzare la scheda su IsiWeb: Clicca quiLink per visualizzare la citazioni su IsiWeb: Clicca qui