A spin-polarized bi-exciton in a semiconductor quantum dot
Bibliographic record
Abstract
We discuss the role of spin-polarized multi-exciton complexes in the emission spectra of semiconductor quantum dots. The spin-polarized bi-exciton complex composed of two spin-polarized electrons and two spin-polarized holes confined in a single, parabolic, self-assembled quantum dot is discussed in detail. The configuration-interaction approach is used to compute the energies, wavefunctions, and emission spectra as a function of the magnetic field. It is shown that the spin-polarized bi-exciton emission spectrum differs from the unpolarized spectrum due to the Pauli blocking and exchange interactions. The emission from spin-polarized bi-exciton allows for the measurement of ground and excited single-exciton states, and its magnetic field dependence allows for the differentiation of the spin-polarized bi-exciton and tri-exciton spectrum.
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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) | 0.001 | 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 | 0.001 |
| 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".