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- W1489278360 abstract "We illustrate the mass and charge renormalization procedures in quantum field theory using, as an example, a simple model of interacting electrons and photons. It is shown how addition of infinite renormalization counterterms to the Hamiltonian helps to obtain finite and accurate results for the S-matrix. In order to remove the ultraviolet divergences from the Hamiltonian, we apply the Greenberg-Schweber ``dressing transformation'' and the Glazek-Wilson ``similarity renormalization''. The resulting ``dressed particle'' Hamiltonian is finite in all orders of the perturbation theory and yields accurate S-matrix and bound state energies. The bare and virtual particles are removed from the theory, and physical dressed particles interact via direct action-at-a-distance." @default.
- W1489278360 created "2016-06-24" @default.
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- W1489278360 date "2005-03-08" @default.
- W1489278360 modified "2023-09-27" @default.
- W1489278360 title "Renormalization and dressing in quantum field theory" @default.
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