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avoid that numerical instabilities trigegring the KHI #4462

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avoid that numerical instabilities trigegring the KHI #4462

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Commits on Feb 16, 2023

  1. avoid that numerical instabilities trigegring the KHI 

    related to ComputationalRadiationPhysics#3234

We observe since long time that our KHi is seeded by nummerical issues
instead a well reproducable condition.
I came up with the idea to use the composit pusher to create maxwell
conform fields over 500 steps and then start to real KHI simulation.
@PrometheusPi suggested to use a random position for electrons and ions
and not using the temperature seeding for electrons.
    @psychocoderHPC
    psychocoderHPC committed Feb 16, 2023
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