Sökning: "Twisting"

Visar resultat 6 - 10 av 37 avhandlingar innehållade ordet Twisting.

  1. 6. Twisting it up the Quantum Way : On Matrix Models, q-deformations and Supersymmetric Gauge Theories

    Författare :Rebecca Lodin; Maxim Zabzine; Taro Kimura; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Matrix models; Virasoro constraints; Virasoro algebra; W algebra; q-deformations; Supersymmetric gauge theories; Theoretical Physics; Teoretisk fysik;

    Sammanfattning : The mathematical framework which quantum field theory constitutes has been very successful in describing nature. As an extension of such a framework, the idea of supersymmetry was introduced. This greatly simplified the mathematical description of the theories, making them more tractable. LÄS MER

  3. 7. Supersymmetric Localization : A Journey from Seven to Three Dimensions

    Författare :Konstantina Polydorou; Guido Festuccia; Elli Pomoni; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Supersymmetry; Localization; Equivariant Cohomology; BPS Operators; Topological Field Theory; Equivariant Twisting; Theoretical Physics; Teoretisk fysik;

    Sammanfattning : Quantum Field Theory has been a dominating framework in elementary particle physics during the last century. Within this framework, supersymmetric theories have attracted a lot of attention due to their mathematical structure, simplicity and insight into the problems of unification, dark matter and hierarchy. LÄS MER

  4. 8. (2,0) Theory and Higher Spin: Twisting, Turning and Spinning Towards Higher Energies

    Författare :Hampus Linander; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : This thesis investigates an enigmatic six-dimensional quantum theory known as (2,0) theory and a three dimensional conformal theory of higher spin. The former has resisted an explicit construction as a quantum field theory, yet its existence can be inferred from string theory and M-theory where it plays a prominent role. LÄS MER

  5. 9. Modalities of Mind : Modality-specific and nonmodality-specific aspects of working memory for sign and speech

    Författare :Mary Rudner; Jerker Rönnberg; Alan Baddeley; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Cognition; sign language; working memory; fMRI; PET; disability research; Korttidsminne; teckenspråk; Cognitive science; Kognitionsvetenskap;

    Sammanfattning : Language processing is underpinned by working memory and while working memory for signed languages has been shown to display some of the characteristics of working memory for speech-based languages, there are a range of anomalous effects related to the inherently visuospatial modality of signed languages. On the basis of these effects, four research questions were addressed in a series of studies:1. LÄS MER

  7. 10. Homotopy automorphisms, graph complexes, and modular operads

    Författare :Robin Stoll; Alexander Berglund; Manuel Krannich; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; matematik; Mathematics;

    Sammanfattning : This licentiate thesis consists of two papers.In Paper I we identify the cohomology of the stable classifying space of homotopy automorphisms (relative to an embedded disk) of connected sums of S^k × S^l, where 3 ≤ k < l ≤ 2k − 2. We express the result in terms of Lie graph complex homology. LÄS MER