Search for dissertations about: "Matematisk fysik"
Showing result 1 - 5 of 125 swedish dissertations containing the words Matematisk fysik.
-
1. On string integrability : A journey through the two-dimensional hidden symmetries in the AdS/CFT dualities
Abstract : One of the main topics in the modern String Theory are the conjectured string/gauge (AdS/CFT) dualities. Proving such conjectures is extremely difficult since the gauge and string theory perturbative regimes do not overlap. In this perspective, the discovery of infinitely many conserved charges, i.e. READ MORE
-
2. 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
-
3. Group Extensions, Gerbes and Twisted K-theory
Abstract : This thesis reviews the theory of group extensions, gerbes and twisted K-theory. Application to anomalies in gauge theory is briefly discussed. The main results are presented in two appended scientific papers. READ MORE
-
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
-
5. Dynamics of quarks and leptons : theoretical Studies of Baryons and Neutrinos
Abstract : The Standard Model of Elementary Particle Physics (SM) is the present theoryfor the elementary particles and their interactions and is a well-established theorywithin the physics community. The SM is a combination of Quantum Chromodynamics(QCD) and the Glashow{Weinberg{Salam (GWS) electroweak model. READ MORE
