A nonperturbative study of three-dimensional phi^4 theory

Details A nonperturbative study of three-dimensional phi^4 theory A nonperturbative study of three-dimensional phi^4 theory

2000-02-28

arxiv.org/abs/hep-th/0002243v3

Physics

High Energy Physics

High Energy Physics - Theory

21 pages, 10 figures. v2: acknowledgement added. v3: table and references added

Scientific paper

The spherical field formalism---a nonperturbative approach to quantum field theory---was recently introduced and applied to phi^4 theory in two dimensions. The spherical field method reduces a quantum field theory to a finite-dimensional quantum mechanical system by expanding field configurations in terms of spherical partial wave modes. We extend the formalism to phi^4 theory in three dimensions and demonstrate the application of the method by analyzing the phase structure of this theory.

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