Holography and Emergent 4D Gravity

Abstract

I review recent work toward constructing, via five-dimensional holographic duals, four-dimensional theories in which spin-2 states (gravitons) are emergent. The basic idea is to extend to gravity model-building the applications of holographic duality to phenomenology construction.

Comments: 14 pages, 1 figure. Invited review for Modern Physics Letters A. Journal version; minor typos corrected