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Record W7065131757

De Sitter spacetime as a coherent state: non-perturbative analysis

2023· dissertation· en· W7065131757 on OpenAlexafffund

Bibliographic record

VenueeScholarship@McGill (McGill) · 2023
Typedissertation
Languageen
FieldPhysics and Astronomy
TopicParticle Detector Development and Performance
Canadian institutionsMcGill University
FundersMcGill University
KeywordsSpacetimeDe Sitter universeSpace (punctuation)Field (mathematics)Context (archaeology)de Sitter invariant special relativity
DOInot available

Abstract

fetched live from OpenAlex

We discuss an explicit construction of a four-dimensional de Sitter spacetime as a coherent (Glauber-Sudarshan) state.The path integrals approach is used to calculate the scalar field expectation value on a coherent state.A special diagrammatic technique is introduced to simplify and visualize the calculations.The perturbative computations lead to an asymptotic series which are then analyzed by means of the Borel resummation technique.This procedure reveals the non-perturbative structure of the system.The analysis of our simplified toy model suggests the possible construction of a stable four-dimensional de Sitter spacetime as a Glauber-Sudarshan coherent state.The non-perturbative data gleaned from the Borel resummation of the asymptotic series strongly points towards a positive cosmological constant. AbrgNous discutons une construction explicite d'un espace de Sitter en quatre dimensions comme tat cohrent (Glauber-Sudarshan).L'approche des intgrales de chemin est utilise pour calculer la valeur d'attente du champ scalaire sur un tat cohrent.Une technique graphique spciale est introduite pour simplifier et visualiser les calculs.Les calculs perturbateurs conduisent une srie asymptotique qui est ensuite analyse au moyen de la technique de reprise de Borel.Cette procdure rvle la structure non-perturbative du systme.L'analyse de notre modle simplifi suggre la construction possible d'un espace de Sitter stable en quatre dimensions comme un tat cohrent.Les donnes non-perturbatives glanes partir de la reprise de Borel de la srie asymptotique pointe fortement vers une constante cosmologique positive.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Insufficient payload (model declined to judge)
Consensus categoriesInsufficient payload (model declined to judge)
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.701
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.001
Bibliometrics0.0010.002
Science and technology studies0.0010.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.001
Insufficient payload (model declined to judge)0.0020.003

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.

Opus teacher head0.011
GPT teacher head0.251
Teacher spread0.240 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; both teacher heads agree on what is shown here.

Study designBench or experimental
Domainnot available
GenreEmpirical

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".

Quick stats

Citations0
Published2023
Admission routes2
Has abstractyes

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