Search for dissertations about: "Renormalization"
Showing result 21 - 25 of 56 swedish dissertations containing the word Renormalization.
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21. Interactions on the edge of a quantum spin Hall insulator
Abstract : Effects from electron-electron interactions on the edge of a quantum spin Hall insulator are studied using bosonisation and renormalisation group methods. First, a quantum spin Hall device with a point contact connecting two of its edges is considered. READ MORE
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22. Renormalization groups and variational states in an interacting 1D quantum model
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23. Density-matrix renormalization-group analysis of quantum phase transitions in disordered spin chains
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24. Beta functions and multi-scalar gauge theory
Abstract : In this licentiate thesis, we provide the context and background for our work One-loop algebras and fixed flow trajectories in adjoint multi-scalar gauge theory (published in JHEP) on the renormalization group flow for a multi-scalar SU(N) gauge theory. The background consists of a description of renormalization group flow, with a focus on beta functions andhow to find fixed points, and multi-scalar theories. READ MORE
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25. Phenomenology of neutrino properties, unification, and Higgs couplings beyond the Standard Model
Abstract : The vast majority of experiments in particle physics can be described by the Standard Model of particle physics (SM). However, there are indications for physics beyond it. The only experimentally demonstrated problem of the model is the difficulty to describe neutrino masses and leptonic mixing. READ MORE