PIRSA:08050029

Dressed particle approach in quantum field theory

Stefanovich, E. (2008). Dressed particle approach in quantum field theory. Perimeter Institute. https://pirsa.org/08050029

Stefanovich, Eugene. Dressed particle approach in quantum field theory. Perimeter Institute, May. 05, 2008, https://pirsa.org/08050029 

          @misc{ pirsa_PIRSA:08050029,
            doi = {10.48660/08050029},
            url = {https://pirsa.org/08050029},
            author = {Stefanovich, Eugene},
            keywords = {Cosmology},
            language = {en},
            title = {Dressed particle approach in quantum field theory},
            publisher = {Perimeter Institute},
            year = {2008},
            month = {may},
            note = {PIRSA:08050029 see, \url{https://pirsa.org}}
          }

Eugene Stefanovich

DOI 10.48660/08050029
Collection
Talk Type Scientific Series
Subject

Abstract

I will review an old (Greenberg and Schweber, 1958) and undeservedly forgotten idea in quantum field theory. This idea allows one to reformulate QFT as a Hamiltonian theory of physical (rather than bare) particles and their direct interactions. The dressed particle approach is scattering-equivalent to the traditional one, however it doesn\'t require renormalization and may provide a valuable tool for calculations of wave functions of bound states and time evolution.