Symmetric Fano Profiles of Two-photon Electronic Transitions Observed in an Ultracold Rydberg Gas
Bibliographic record
Abstract
Fano profiles are caused by the interference between the discrete states and continuum. It is a very common phenomenon in multi-electron Rydberg states, such as the Rydberg states of group II elements in the periodic table. It often leads to autoionization due to the fact that a discrete state couples with an autoionizing state. Unlike the typical asymmetric line shape, here we report a symmetric unusual Fano line shape that has been predicted. In addition, this profile is caused by molecular states or polymer states instead of multi-electron atomic states. Moreover, it is shown that the fano profile caused by the multi-electron polymer states does not necessarily lead to autoionization. We propose that the Fano profile studied is caused by the interference between discrete levels and the multipole-multipole coupled continuum, or energy band.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.005 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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".