Maximum-entropy states for magnetized ion transport

E. J. Kolmes, I. E. Ochs, M. E. Mlodik, N. J. Fisch

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


For a plasma with fixed total energy, number of particles, and momentum, the distribution function that maximizes entropy is a Boltzmann distribution. If, in addition, the rearrangement of charge is constrained, as happens on ion-ion collisional timescales for cross-field multiple-species transport, the maximum-entropy state is instead given by the classic impurity pinch relation. The maximum-entropy derivation, unlike previous approaches, does not rely on the details of the collision operator or the dynamics of the system, only on the presence of certain conservation properties.

Original languageEnglish (US)
Article number126262
JournalPhysics Letters, Section A: General, Atomic and Solid State Physics
Issue number13
StatePublished - May 7 2020

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


  • Differential transport
  • Impurity pinch
  • Impurity transport
  • Maximum entropy
  • Plasma thermodynamics
  • Rotating plasma


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