Abstract
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 language | English (US) |
|---|---|
| Article number | 126262 |
| Journal | Physics Letters, Section A: General, Atomic and Solid State Physics |
| Volume | 384 |
| Issue number | 13 |
| DOIs | |
| State | Published - May 7 2020 |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy
Keywords
- Differential transport
- Impurity pinch
- Impurity transport
- Maximum entropy
- Plasma thermodynamics
- Rotating plasma