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    Kinetic equilibria of relativistic collisionless plasmas in the presence of non-stationary electromagnetic fields

    Zdeněk Stuchlík · Březen 01, 2014 · Fyzika · 0 comments
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    Publication date: Mar 2014

    Abstract:
    The kinetic description of relativistic plasmas in the presence of time-
    varying and spatially non-uniform electromagnetic (EM) fields is a
    fundamental theoretical issue both in astrophysics and plasma physics.
    This refers, in particular, to the treatment of collisionless and
    strongly-magnetized plasmas in the presence of intense radiation
    sources. In this paper, the problem is investigated in the framework of
    a covariant gyrokinetic treatment for Vlasov-Maxwell equilibria. The
    existence of a new class of kinetic equilibria is pointed out, which
    occur for spatially-symmetric systems. These equilibria are shown to
    exist in the presence of non-uniform background EM fields and curved
    space-time. In the non-relativistic limit, this feature permits the
    determination of kinetic equilibria even for plasmas in which particle
    energy is not conserved due to the occurrence of explicitly time-
    dependent EM fields. Finally, absolute stability criteria are
    established which apply in the case of infinitesimal symmetric
    perturbations that can be either externally or internally produced.

    Authors:
    Cremaschini, Claudio; Tessarotto, Massimo; Stuchlík, Zdeněk;

    https://ui.adsabs.harvard.edu/abs/2014PhPl…21c2902C

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