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arXiv · 2002.10839

Effective Action from the Functional Renormalization Group

Nobuyoshi Ohta·Leslaw Rachwal
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Abstract

We study the quantum gravitational system coupled to a charged scalar, Dirac fermions, and electromagnetic fields. We use the "exact" or "functional" renormalization group equation to derive the effective action $Γ_0$ by integrating the flow equation from the ultraviolet scale down to $k=0$. The resulting effective action consists of local terms and nonlocal terms with unique coefficients.

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Nobuyoshi Ohta, Leslaw Rachwal. 2020-10-26. Effective Action from the Functional Renormalization Group. https://doi.org/10.1140/epjc%2Fs10052-020-8325-8

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