Renormalization Group and the Ricci flow
classification
✦ hep-th
math-phmath.DGmath.MP
keywords
flowriccigrouprenormalizationarguebeyondconnectioncoupling
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We discuss from a geometric point of view the connection between the renormalization group flow for non--linear sigma models and the Ricci flow. This offers new perspectives in providing a geometrical landscape for 2D quantum field theories. In particular we argue that the structure of Ricci flow singularities suggests a natural way for extending, beyond the weak coupling regime, the embedding of the Ricci flow into the renormalization group flow.
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Cited by 1 Pith paper
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Functional Renormalization Group as a Ricci Flow: An $\mathcal{F}$-Entropy Perspective on Information Metric Dynamics
The functional renormalization group is equivalent to a diffeomorphism-modified Ricci flow on the information metric of coupling space, with the log effective action generating diffeomorphisms and an F-entropy serving...
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