Non-Trivial Directions for Scalar Fields

Details Non-Trivial Directions for Scalar Fields Non-Trivial Directions for Scalar Fields

1995-10-31

arxiv.org/abs/hep-th/9510240v1

Phys.Rev. D53 (1996) 3252-3259

Physics

High Energy Physics

High Energy Physics - Theory

UUencoded LaTex, 15 pages + 3 postscript figures

Scientific paper

10.1103/PhysRevD.53.3252

We study the eigenvectors of the renormalization-group matrix for scalar fields at the Gaussian fixed point, and find that that there exist ``relevant'' directions in parameter space. They correspond to theories with exponential potentials that are nontrivial and asymptotically free. All other potentials, including polynomial potentials, are ``irrelevant,'' and lead to trivial theories. Away from the Gaussian fixed point, renormalization does not induce derivative couplings, but it generates non-local interactions.

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