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Geometric features of string theory at low-energy
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Lukic, Sergio. Geometric features of string theory at low-energy. Retrieved from https://doi.org/doi:10.7282/T3VM4CM6

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Uniform TitleGeometric features of string theory at low-energy
NameLukic, Sergio (author); Moore, Gregory (chair); Diaconescu, Duiliu (internal member); Douglas, Michael (internal member); Keeton, Charles (internal member); Sturm, Jacob (outside member); Rutgers University; Graduate School - New Brunswick
Date Created2008
Other Date2008-05 (degree)
SubjectPhysics and Astronomy, String models, Mathematical physics
Extentix, 93 pages
DescriptionIn this thesis we study several differential-geometric aspects of the low energy limit of string theory. We focus on anomaly cancellation issues in M-theory on a manifold with boundary and background fluxes, and the computation of non-holomorphic quantities in Calabi-Yau compactifications.
In the first chapter we introduce the motivation and the problems that we will study. In the second chapter we show how the coupling of gravitinos and gauginos to fluxes modifies anomaly cancellation in M-theory on a manifold with boundary. Anomaly cancellation continues to hold, after a shift of the definition of the gauge currents by a local gauge invariant expression in the curvatures and E8 fieldstrengths. We compute the first nontrivial correction of this kind. In the last chapter, we introduce methods to determine the form of the effective fourdimensional field theory corresponding to compactifications of string theory. More precisely, we develop iterative methods for finding solutions to the Ricci flat equations on a Calabi-Yau variety, and to the hermitian Yang-Mills equation on stable holomorphic vector bundles, following ideas developed by Donaldson. Finally, we show how these techniques can be understood using the language of geometric quantization of Kaehler manifolds, and suggest how one can use these ideas to explicitly construct additional geometric objects.
NotePh.D.
NoteIncludes bibliographical references (p. 86-92).
Genretheses, ETD doctoral
Persistent URLhttps://doi.org/doi:10.7282/T3VM4CM6
LanguageEnglish
CollectionGraduate School - New Brunswick Electronic Theses and Dissertations
Organization NameRutgers, The State University of New Jersey
RightsThe author owns the copyright to this work.
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