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PIRSA:08100078

Triviality from the Exact Renormalization Group

Rosten, O. (2008). Triviality from the Exact Renormalization Group. Perimeter Institute. https://pirsa.org/08100078

Oliver Rosten University of Sussex

Talk numberPIRSA:08100078
DOI10.48660/08100078
Collection
Talk Type Scientific Series
Subject

Abstract

After reviewing Wilson\'s picture of renormalization, and the associated Exact Renormalization Group, I will show that no (physically acceptable) non-trivial fixed points exist for scalar field theory in D>=4. Consequently, an asymptotic safety scenario is ruled out, and the triviality of the theory is confirmed.