Finite Action in d5 Gauged Supergravity and Dilatonic Conformal Anomaly for Dual Quantum Field Theory

TL;DR

This paper derives finite actions, computes thermodynamic quantities, and analyzes conformal anomalies in dilatonic gauged supergravity models, providing insights into dual quantum field theories via AdS/CFT correspondence.

Contribution

It introduces a method to calculate finite actions and conformal anomalies in dilatonic gauged supergravity, extending previous work to include scalar potentials and dual QFT implications.

Findings

Finite surface counterterms and actions are derived for dilatonic AdS spaces.

Explicit expressions for free energy, entropy, and mass of dilatonic AdS black holes are obtained.

Dilaton-dependent conformal anomalies and candidate c-functions are proposed for dual QFTs.

Abstract

Gauged supergravity (SG) with single scalar (dilaton) and arbitrary scalar potential is considered. Such dilatonic gravity describes special RG flows in extended SG where scalars lie in one-dimensional submanifold of total space. The surface counterterm and finite action for such gauged SG in three-, four- and five-dimensional asymptotically AdS space are derived. Using finite action and consistent gravitational stress tensor (local surface counterterm prescription) the regularized expressions for free energy, entropy and mass of d4 dilatonic AdS black hole are found. The same calculation is done within standard reference background subtraction. The dilaton-dependent conformal anomaly from d3 and d5 gauged SGs is calculated using AdS/CFT correspondence. Such anomaly should correspond to two- and four-dimensional dual quantum field theory which is classically (not exactly) conformally invariant, respectively. The candidate c-functions from d3 and d5 SGs are suggested. These c-functions which have fixed points in asymptoticaly AdS region are expressed in terms of dilatonic potential and they are positively defined and monotonic for number of potentials.