Essays about: "Infrared Divergence"
Found 4 essays containing the words Infrared Divergence.
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1. Asymptotic Symmetries and Dressed States in QED and QCD
University essay from Stockholms universitet/FysikumAbstract : Infrared divergences arising in theories with massless gauge bosons have been shown to cancel in scattering amplitudes when using dressed states constructed from the Faddeev- Kulish approach to the asymptotic states. It has been established that these states are closely related to asymptotic symmetries of the theory, that is, non-vanishing gauge trans- formations at the asymptotic boundary. READ MORE
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2. Drought tolerance phenotyping using thermal imaging : high throughput phenotyping of Pinus sylvestris
University essay from SLU/Dept. of Forest Ecology and ManagementAbstract : Climate change is an emerging problem in the world. One of the many challenges that comes with it is an increase of droughts. Droughts cause stress for plants, which impact the growth. READ MORE
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3. Manipulation and application of laser light using spatial light modulation
University essay from Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionenAbstract : Attosecond pulses obtained via high harmonic generation often suffer from chromatic aberration. This is inherent from the generation process as a consequence of the spatial profile of the driving laser pulses. READ MORE
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4. Asymptotic Symmetries and Faddeev-Kulish states in QED and Gravity
University essay from Stockholms universitet/FysikumAbstract : When calculating scattering amplitudes in gauge and gravitational theories one encounters infrared (IR) divergences associated with massless fields. These are known to be artifacts of constructing a quantum field theory starting with free fields, and the assumption that in the asymptotic limit (i.e. READ MORE