Is the Graviton a Domain Wall Glueball?

TL;DR

This paper investigates the graviton's nature within a strong coupling framework using an $AdS^7$ black hole model, revealing a new state that aligns with Einstein-Hilbert gravity with minor corrections.

Contribution

It introduces an UV cutoff in the model and discovers a normalizable tensor state that reproduces Einstein-Hilbert gravity, advancing understanding of gravity in holographic models.

Findings

Discovery of a new normalizable tensor state

Reproduction of Einstein-Hilbert gravity with small corrections

Modification of glueball spectrum calculations

Abstract

Strong coupling calculations for the glueball spectrum in an $AdS^7$ black hole are modified by introducing an UV cut-off at a Planck brane. A new normalizable state in the tensor spectrum is found which reproduces Einstein-Hilbert gravity up to exponentially small corrections due to off shell mixing with massive glueballs.