Search for dissertations about: "BRANE"
Showing result 1 - 5 of 23 swedish dissertations containing the word BRANE.
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1. If I only had a brane!
Abstract : .... READ MORE
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2. Conformal Field Theory Deformations and Supersymmetric D-brane Actions
Abstract : Over the past few years a dramatic progress in understanding non-perturbative phenomena in string theory has occurred. This is commonly referred to as the second string revolution. This thesis, consisting of an introduction and five appended research papers (I-V), deals with pre-revolutionary as well as post-revolutionary aspects of string theory. READ MORE
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3. Abelian Extensions, Fractional Loop Group and Quantum Fields
Abstract : This thesis deals with the theory of Lie group extensions, Lie conformal algebras and twisted K-theory, in the context of quantum physics. These structures allow for a mathematically precise description of certain aspects of interacting quantum field theories. READ MORE
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4. Aspects of extra dimensions and membranes
Abstract : This thesis is about thwo papers related to extra dimensions. Paper A discusses extrinsic curvature effects, and paper B treats symmetries of supersymmetric membranes. In the part of this thesis related to paper A, we extend the theory of non-relativistic quantum particles confined to submanifolds to relativistic boson fields. READ MORE
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5. Electric-Magnetic Duality and Supersymmetry in Four and Six Dimensions
Abstract : We study some aspects of the still very mysterious M-theory five-brane, mostly from the world-sheet field theory perspective. One aspect is the Seiberg-Witten curve in N = 2 four-dimensional super Yang-Mills theory. READ MORE