Dressed particle approach in quantum field theory
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.
Date: 05/05/2008 - 2:00 pm
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