The Eulerian variational formulation of the gyrokinetic system in general spatial coordinates

  title={The Eulerian variational formulation of the gyrokinetic system in general spatial coordinates},
  author={Hideo Sugama and Seikichi Matsuoka and Masanori Nunami and Shinsuke Satake},
The Eulerian variational formulation of the gyrokinetic system with electrostatic turbulence is presented in general spatial coordinates by extending our previous work [H. Sugama, {\it et al}., Phys.\ Plasmas {\bf 25}, 102506 (2018)]. The invariance of the Lagrangian of the system under an arbitrary spatial coordinate transformation is used to derive the local momentum balance equation satisfied by the gyrocenter distribution functions and the turbulent potential which are given as solutions of… 

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