View Item 
        •   Utrecht University Student Theses Repository Home
        • UU Theses Repository
        • Theses
        • View Item
        •   Utrecht University Student Theses Repository Home
        • UU Theses Repository
        • Theses
        • View Item
        JavaScript is disabled for your browser. Some features of this site may not work without it.

        Browse

        All of UU Student Theses RepositoryBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

        Generalized Global Symmetries and the Swampland

        Thumbnail
        View/Open
        ThesisVanVurenFinal.pdf (1.707Mb)
        Publication date
        2022
        Author
        Vuren, Thomas van
        Metadata
        Show full item record
        Summary
        The recent discovery of a large class of generalized global symmetries has significantly impacted our understanding of many phenomena in quantum field theory, ranging from anomalies to confinement with applications to both low- and high-energy physics. It is widely believed however, that exact global symmetries are forbidden in consistent theories of quantum gravity. By studying how generalized global symmetries are avoided in string theory, we may discover mechanisms which turn out to be general features of quantum gravity. In this thesis we will follow this approach and apply it to a large class of effective field theories obtained from Calabi-Yau compactification of type IIB string theory. After a review of these effective theories, we give an accessible introduction to generalized global symmetries with a focus on their role in the swampland program. Using asymptotic Hodge theory we then extract the most general limiting form of the action near boundaries in the complex structure moduli space. With these in hand, we enumerate the global symmetries that may emerge in these limits and explore how they are broken by stringy effects.
        URI
        https://studenttheses.uu.nl/handle/20.500.12932/42261
        Collections
        • Theses
        Utrecht university logo