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Plasmas at the extreme Luis O. Silva

Thursday, March 14, 2019 - 11:15 to 12:30 Auditorium

Many astrophysical and laboratory scenarios share common underlying microphysics, and collective plasma effects associated with intense fields can have direct consequences on the plasma dynamics. These mechanisms, also involving QED effects, are highly nonlinear and multi scale, and require a combination of theory and large scale numerical simulations. The main challenges to address these scenarios will be discussed, as well as recent progresses triggered by large scale simulations of compact objects or of conditions in their vicinity, and developments on multi dimensional laser/beam plasma interactions in the presence of fields close to the critical Schwinger field, as expected in the most intense lasers now being built or in the most advanced particle accelerators. The connections between these scenarios will be discussed, emphasising the interplay between collective plasma dynamics and QED processes. Examples from both laboratory and astrophysical conditions will be provided.