Essays about: "Large gauge transformation"

Found 3 essays containing the words Large gauge transformation.

  1. 1. Asymptotic Symmetries and Dressed States in QED and QCD

    University essay from Stockholms universitet/Fysikum

    Author : Saimeng Zhou; [2023]
    Keywords : Dressed states; Large gauge transformation; Faddeev-Kulish formalism; Generalized coherent state operator; Wilson line; Infrared divergence; Asymptotic Hamiltonian; QED; QCD;

    Abstract : 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

  3. 2. Transformation of In-Flight Measured Loads to a Fatigue Test Spectrum

    University essay from Linköpings universitet/Mekanik och hållfasthetslära

    Author : Patrick Dümig; [2022]
    Keywords : Aerospace engineering; Aircraft load spectra; ASIP; Crack growth; Fatigue testing; Flight loads; Flight test; Fracture mechanics; FSFT; In-flight measurements; Load spectrum reduction; Racetrack filtering; Strain gauge measurements;

    Abstract : Fatigue is a well-recognized issue in lightweight and high-performance aircraft structures. As fatigue failures have led to serious accidents and caused significant economic impact in the past, design against fatigue is crucial. READ MORE

  4. 3. Asymptotic Symmetries and Faddeev-Kulish states in QED and Gravity

    University essay from Stockholms universitet/Fysikum

    Author : David Gaharia; [2019]
    Keywords : Faddeev-Kulish; BMS; Bondi-Metzner-Sachs; Asymptotic Symmetries; Asymptotic States; Wilson Lines; Infrared Divergence; Bloch-Nordsieck; Large Gauge Transformations; Fock; QED; Quantum Electrodynamics; Perturbative Quantum Gravity; PQG; U 1 ; Transformations; Mandelstam Quantization;

    Abstract : 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