This thesis is devoted to the analysis of solvable hamiltonian models, with the purpose of understanding and possibly filling the gap that still separates the standard methods, used to circumvent the infrared divergences occurring in the local and covariant Feynman-Dyson expansion of Quantum Electrodynamics, from a formulation of scattering in which the non-perturbative features of the infrared problem are taken into account.
Scattering theories in models of quantum electrodynamics
2009
Abstract
This thesis is devoted to the analysis of solvable hamiltonian models, with the purpose of understanding and possibly filling the gap that still separates the standard methods, used to circumvent the infrared divergences occurring in the local and covariant Feynman-Dyson expansion of Quantum Electrodynamics, from a formulation of scattering in which the non-perturbative features of the infrared problem are taken into account.File in questo prodotto:
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Utilizza questo identificativo per citare o creare un link a questo documento:
https://hdl.handle.net/20.500.14242/154907
Il codice NBN di questa tesi è
URN:NBN:IT:UNIPI-154907