On neoclassical effects in the theory of magnetic islands
Bibliographic record
Abstract
Neoclassical viscosity affects the stability of magnetic islands by providing additional source of the transverve electric current contributing to the net longitudinal current in the magnetic island. One component of such neoclassical longitudinal current has a structure similar to the ion polarization current with enhanced plasma inertia and was investigated previosly. We show that in addition to the neoclassical inertia term, there is additional neoclassical current associated with variations of plasma pressure within the perturbed magnetic surfaces. Such variations can be caused by the ion polarization drift across the magnetic surface and finite heat conductivity in the parallel direction. A contribution of the neoclassical current due to plasma pressure variations is of the same order or larger than the standard ion polarization and bootstrap current terms. New terms will affect overall stability of magnetic islands and may provide a new threshold mechanism for the neoclassical tearing modes.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.002 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".