Bibliographic record
Abstract
We construct a 4d Lorentzian spin foam model capable of describing both spacelike and \ntimelike surfaces. To do so we use a coherent state approach inspired by the Riemannian \nFK model. Using the coherent state method we reproduce the results of the EPRL model \nfor Euclidean tetrahedra and extend the model to include Lorentzian tetrahedra. The \ncoherent states of spacelike/timelike triangles are found to correspond to elements of the \ndiscrete/continuous series of SU(1,1). It is found that the area spectrum of both spacelike \nand timelike surfaces is quantized. A path integral for the quantum theory is defined \nas a product of vertex amplitudes. The states corresponding to timelike triangles are \nconstructed in a basis diagonalised with respect to a noncompact generator. A derivation \nof the matrix elements of the generators of SL(2,C) in this basis is provided.
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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) | 0.001 | 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".