Polyakov formulas for GJMS operators from AdS/CFT

TL;DR

This paper derives the conformal anomaly and Polyakov formulas for GJMS operators using AdS/CFT correspondence, linking bulk quantum corrections to boundary conformal invariants and confirming conjectured anomaly patterns.

Contribution

It provides a holographic derivation of the conformal anomaly for GJMS operators from AdS/CFT, connecting bulk quantum corrections with boundary conformal invariants and confirming existing conjectures.

Findings

Derived the conformal anomaly for GJMS operators holographically.

Established a universal formula for the type A anomaly coefficient.

Confirmed agreement with previously reported anomaly values.

Abstract

We argue that the AdS/CFT calculational prescription for double-trace deformations leads to a holographic derivation of the conformal anomaly, and its conformal primitive, associated to the whole family of conformally covariant powers of the Laplacian (GJMS operators) at the conformal boundary. The bulk side involves a quantum 1-loop correction to the SUGRA action and the boundary counterpart accounts for a sub-leading term in the large-N limit. The sequence of GJMS conformal Laplacians shows up in the two-point function of the CFT operator dual to a bulk scalar field at certain values of its scaling dimension. The restriction to conformally flat boundary metrics reduces the bulk computation to that of volume renormalization which renders the universal type A anomaly. In this way, we directly connect two chief roles of the Q-curvature: the main term in Polyakov formulas on one hand, and its relation to the Poincare metrics of the Fefferman-Graham construction, on the other hand. We find agreement with previously conjectured patterns including a generic and simple formula for the type A anomaly coefficient that matches all reported values in the literature concerning GJMS operators, to our knowledge.