Original scientific paper
Framework for finite alternative theories to a quantum field theory
Marijan Ribarič
; Jožef Stefan Institute, p. p. 3000, 1001 Ljubljana, Slovenia
Luka Šušteršič
; Jožef Stefan Institute, p. p. 3000, 1001 Ljubljana, Slovenia
Abstract
The proposed framework is intended to faciliate the search for Lagrangian-based regularizations that introduce only such coefficients which are not regarded as formal auxiliary parameters that will eventually be disposed of during renormalization. Using the path-integral formalism, we put forward a new framework for such finite, alternative quantum theories to a given quantum field theory that have no formal auxiliary parameters. The corresponding alternative, perturbative Green functions are acceptably regularized perturbative expansions of the original Green functions, causal and imply no unphysical free particles. To demonstrate that the proposed framework is feasible, we provide an alternative to the quantum field theory with the φ4 interaction.
Keywords
finite quantum theory; realistic regularization
Hrčak ID:
304077
URI
Publication date:
1.10.2002.
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