Search for dissertations about: "QED"
Showing result 1 - 5 of 46 swedish dissertations containing the word QED.
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1. QED and collective effects in vacuum and plasmas
Abstract : The theory of quantum electrodynamics (QED) was born out of an attempt to merge Einsteins theory of special relativity and quantum mechanics. Einsteins energy/mass equivalence together with Heisenberg's uncertainty principle allows for particle pairs to be spontaneously created and annihilated in vacuum. READ MORE
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2. QED with external fields : vacuum effects and thermodynamics
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3. Finite temperature and density QED with external fields
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4. Time dependent processes incavity QED
Abstract : Cavity quantum electrodynamics (QED) has become one of themost successful tools for quantum information processing, butalso for the study of other pure quantum effects. In thisthesis we investigate one such system, the micromaser; an atomtraverse a cavity and interacts with the quantized modes of thecavity field. READ MORE
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5. The Chirality-Flow Formalism and Optimising Scattering Amplitudes
Abstract : This thesis is composed of five papers, which all attempt to optimise calculations of scattering amplitudes in high-energy-physics collisions. These scattering amplitudes are a key part of theoretical predictions for particle-physics experiments like the Large Hadron Collider at CERN. READ MORE