Spin and polarisation dependent LCFA rates for nonlinear Compton and Breit-Wheeler processes
Autor: | Seipt, D., King, B. |
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Jazyk: | angličtina |
Rok vydání: | 2020 |
Předmět: | |
Popis: | In this paper we derive and discuss the completely spin- and photon-polarisation dependent probability rates for nonlinear Compton scattering and nonlinear Breit-Wheeler pair production. The locally constant field approximation, which is essential for applications in plasma-QED simulation codes, is rigorously derived from the strong-field QED matrix elements in the Furry picture for a general plane-wave background field. We discuss important polarisation correlation effects in the spectra of both processes. Asymptotic limits for both small and large values of $\chi$ are derived and their spin/polarisation dependence is discussed. Comment: 25 pages, 10 figures |
Databáze: | OpenAIRE |
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