Comment on “modification of Lie's Transform Perturbation Theory for Charged Particle Motion in a Magnetic Field” [phys. Plasmas 30, 042515 (2023)]
Physics of plasmas(2023)
摘要
A recent paper by L. Zheng [Phys. Plasmas 30, 042515 (2023)] presented a critical analysis of standard Lie-transform perturbation theory and suggested that its application to the problem of charged-particle motion in a magnetic field suffered from ordering inconsistencies. In the present Comment, we suggest that this criticism is unjustified and that standard Lie-transform perturbation theory does not need to be modified in its application to guiding-center theory.
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