Inconsistency of magnetic-moment conservation with entropy increase in collisionless shocks

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1 Scopus citations

Abstract

Collisionless shocks are multiscale objects. Energetic ion distributions are gyrotropic at sufficiently large distances upstream and downstream of the shock transition while at the transition itself the ion dynamics is significantly gyrophase dependent. Magnetic-moment conservation of an ion is widely used as a viable approximation during the shock crossing. It is shown that this approximation is inconsistent with the required entropy increase due to the loss of the gyrophase information.

Original languageEnglish
Article number013201
JournalPhysical Review E
Volume102
Issue number1
DOIs
StatePublished - 1 Jul 2020

ASJC Scopus subject areas

  • Statistical and Nonlinear Physics
  • Statistics and Probability
  • Condensed Matter Physics

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