Moments of the electron momentum density: Requirements for ab initio and density functional theory calculations
Bibliographic record
Abstract
Abstract Moments of the electron momentum density are calculated for 68 closed‐shell molecules in their ground states and equilibrium geometries. The computations are made with the Hartree–Fock (HF), Møller–Plesset (MP) perturbation theory, coupled cluster, and six density functional theory (DFT) methods, using a number of basis sets of contracted Gaussian‐type functions. Guidelines for the choice of basis sets for these properties are given. Electron correlation effects are found to be less than 8% and can often be accounted for by the second‐order MP method. DFT methods are found to give relatively poor results, often worse than the HF method. The coupled cluster results should provide a benchmark for future experiments and methodological developments. © 2005 Wiley Periodicals, Inc. Int J Quantum Chem, 2005
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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) | 0.000 | 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 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".