Warped reheating in brane–antibrane inflation
Bibliographic record
Abstract
We examine how reheating occurs after brane–antibrane inflation in warped geometries, such as those which have recently been considered for type IIB string vacua. We adopt the standard picture that the energy released by brane annihilation is dominantly dumped into massive bulk (closed-string) modes which eventually cascade down into massless particles, but argue that this need not mean that the result is mostly gravitons with negligible visible radiation on the Standard Model brane. Rather, in geometries having strongly warped throats we argue that this energy can instead be predominantly dumped into massless modes which are localized at the throat’s tip, because of the exponential growth of the massive Kaluza–Klein wavefunctions there. The result is preferentially to reheat those branes which lay in the most strongly warped throats. We argue that the efficiency of this process removes a conceptual obstacle to the construction of multi-throat models, wherein inflation occurs in a different throat to the one in which the Standard Model brane resides. Such multi-throat models are desirable because they may resolve a difficulty in reconciling inflation with the supersymmetry-breaking scale on the Standard Model brane, and because they may allow cosmic strings to be sufficiently long-lived to be observable during the present epoch.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.001 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 0.002 |
| Scholarly communication | 0.001 | 0.002 |
| Open science | 0.000 | 0.002 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 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 source (direct Gemma or distilled Codex), 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".