Test-particle transport: higher-order correlations and time-dependent diffusion
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
In recent years progress has been achieved in the theory of propagating particles that experience scattering due to interactions with magnetic turbulence. Modern theories for transport are nonlinear as opposed to the traditional quasilinear approach. However, nonlinear theories are based on certain assumptions such as approximations of higher-order correlations. Recently it has been demonstrated that very simple approaches, such as the replacement of fourth-order correlations by a product of two second-order correlations, are often not appropriate. In this paper fourth-order correlations are studied analytically by solving the Fokker–Planck equation of particle transport. Special cases are considered for which an exact analytical treatment is possible. Thereafter, the general case is explored using approximations. A unified theory is derived for compound diffusion, the field line random walk limit, and Markovian diffusion of energetic particles.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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) | 0.000 | 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 it