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arXiv · 2004.04929

Boundary entropy under ambient RG flow in the AdS/BCFT model

Yoshiki Sato
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Abstract

We discuss the change of the boundary entropy under an ambient renormalization group flow. We use conformal perturbation theory to calculate the change of the boundary entropy for $d$-dimensional BCFTs between two nearby fixed points. We also use the AdS$_{d+1}$/BCFT$_d$ model to calculate the boundary entropy. We show that the boundary entropy can increase under the ambient RG flow both in conformal perturbation theory and the AdS$_{d+1}$/BCFT$_d$ model. In a special case, the change of the boundary entropy in the AdS$_{d+1}$/BCFT$_d$ model reduces to that of the conformal perturbation theory.

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Yoshiki Sato. 2020-04-10. Boundary entropy under ambient RG flow in the AdS/BCFT model. https://doi.org/10.1103/physrevd.101.126004

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