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Paper detail

Fixed Point Structure of Gradient Flow Exact Renormalization Group for Scalar Field Theories

Gradient Flow Exact Renormalization Group (GFERG) is a framework to define the Wilson action via a gradient flow equation. We study the fixed point structure of the GFERG equation associated with a general gradient flow equation for scalar field theories and show that it is the same as that of the conventional Wilson-Polchinski (WP) equation in general. Furthermore, we discuss that the GFERG equation has a similar RG flow structure around a fixed point to the WP equation. We illustrate these results with the $O(N)$ non-linear sigma model in $4-ε$ dimensions and the Wilson-Fisher fixed point.

preprint2022arXivOpen access
Yoshihiko AbeYu HamadaJunichi Haruna
hep-lathep-th
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Yoshihiko AbeYu HamadaJunichi Haruna

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