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Record W7019182428

F-theory and M-theory perspectives on N=2 supersymmetric gauge theories in four dimensions

2012· dissertation· en· W7019182428 on OpenAlexfundno aff

Bibliographic record

VenueeScholarship@McGill (McGill) · 2012
Typedissertation
Languageen
FieldPhysics and Astronomy
TopicBlack Holes and Theoretical Physics
Canadian institutionsnot available
FundersGovernment of CanadaMcGill University
KeywordsSupergravityGauge theorySupersymmetric gauge theoryString (physics)BraneString theoryType (biology)M-theoryModuli spaceVacuum state
DOInot available

Abstract

fetched live from OpenAlex

Deformations of the original F-theory background are proposed.These lead to multiple new dualities and physical phenomena.We concentrate on one model where we let seven-branes wrap a multi-centered Taub-NUT space instead of R 4 .This configuration provides a successful F-theory embedding of a class of recently proposed four-dimensional N = 2 superconformal (SCFT) à la Gaiotto.Aspects of Argyres-Seiberg duality, of the new Gaiotto duality, as well as of the branes network of Benini-Benvenuti and Tachikawa are captured by our construction.The supergravity theory for the conformal case is also briefly discussed.Extending our construction to the non-conformal case, we find interesting cascading behavior in four-dimensional gauge theories with N = 2 supersymmetry.Since the analysis of this unexpected phenomenon is quite difficult in the language of type IIB/F-theory, we turn to the type IIA/M-theory description where the origin of the N = 2 cascade is clarified.Using the T-dual type IIA brane language, we first start by studying the N = 1 supersymmetric cascading gauge theory found in type IIB string theory on p regular and M fractional D3-branes at the tip of the conifold.We reproduce the supersymmetric vacuum structure of this theory.We also show that the IIA analog of the non-supersymmetric state found by Kachru, Pearson and Verlinde in the IIB description is metastable in string theory, but the barrier for tunneling to the supersymmetric vacuum goes to infinity in the field theory limit.We then use the techniques we have developed to analyze the N = 2 supersymmetric gauge theory corresponding to regular and fractional D3-branes on a near-singular K3, and clarify the origin of the cascade in this theory.ii Résumé Différentes déformations de la géométrie originale de la théorie F sont proposées.Ces dernières génèrent une multitude de nouvelles dualités ainsi que de nouveaux phénomènes physiques.Nous nous concentrons sur un seul modèle où les membranes en sept dimensions spatiales s'enveloppent autour d'un espace Taub-NUT avec multicentres au lieux de l'espace R 4 original.Cette configuration génère avec succès la réalisation, en théorie F, d'une famille de théories de jauges superconformes en quatres dimensions avec N = 2 supersymétries nouvellement proposées par Gaiotto.Deplus, plusieurs aspects de la dualité d'Argyres-Seiberg, de la nouvelle dualité de Gaiotto ainsi que du réseaux de membranes de Benini-Benvenuti et Tachikawa sont réalisés par notre construction.La théorie de supergravité pour le cas conforme est brièvement discutée.La généralisation de notre construction au cas non-conforme mène à l'observation surprenante de cascade chez les théories de jauges avec N = 2 supersymétries en quatres dimensions.Puisque l'analyse de ce phénomène est difficile dans le language de type IIB/ théorie F, nous nous tournons vers le type IIA/theorie M où l'origine de ce phénomène est élucidée.En utilisant le langage des membranes en type IIA sous la dualité-T, nous débutons par l'étude de cascade chez les théories de jauges avec N = 1 supersymétrie tel que présenté en type IIB avec p membranes D3 régulières et M membranes D3 fractionnaires situées au bout d'un espace conifold.Nous reproduisons avec succès la structure du vide supersymétrique de cette théorie.Aussi, nous démontrons que l'analogue en type IIA des états non-supersymmetriques découverts par Kachru, Pearson et Verlinde en type IIB sont métastables en théorie des cordes alors que la barrière permettant de passer au vide supersymmetrique tant vers l'infinie dans la limite de la théorie des champs.Nous utilisons finalement les techniques que nous avons développées afin d'analyser la théorie de jauge supersymmétrique avec N = 2 correspondante à des membranes D3 régulières et fractionnaires sur un espace K3 presque singulier et clarifions l'origine du mécanisme de cascade dans cette théorie.

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 machine prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Theoretical or conceptual · Consensus signal: Theoretical or conceptual
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.002
Threshold uncertainty score0.010

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0010.000
Meta-epidemiology (broad)0.0000.001
Bibliometrics0.0020.001
Science and technology studies0.0010.002
Scholarly communication0.0020.002
Open science0.0010.001
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0020.000

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.

Opus teacher head0.009
GPT teacher head0.235
Teacher spread0.226 · 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; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designTheoretical or conceptual
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
Published2012
Admission routes1
Has abstractyes

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