6533b7d4fe1ef96bd12620e5

RESEARCH PRODUCT

Polyakov effective action from functional renormalization group equation

Alessandro Codello

subject

High Energy Physics - TheoryPhysicsFOS: Physical sciencesGeneral Physics and AstronomyGeneral Relativity and Quantum Cosmology (gr-qc)Renormalization groupGeneral Relativity and Quantum CosmologyAction (physics)High Energy Physics - Theory (hep-th)Flow (mathematics)Functional renormalization groupCovariant transformationCurved spaceEffective actionScalar fieldMathematical physics

description

We discuss the Polyakov effective action for a minimally coupled scalar field on a two dimensional curved space by considering a non-local covariant truncation of the effective average action. We derive the flow equation for the form factor in $\int\sqrt{g}R c_{k}(\Delta)R$, and we show how the standard result is obtained when we integrate the flow from the ultraviolet to the infrared.

https://doi.org/10.1016/j.aop.2010.04.013