Localized Massive Gravity from B Fields

TL;DR

This paper explores five-dimensional domain-wall solutions derived from string theory reductions, demonstrating the existence of a localized massive graviton mode in the presence of background B fields.

Contribution

It introduces a new class of solutions with localized massive gravitons arising from sphere reductions in M-theory or string theory.

Findings

Existence of a localized massive graviton mode

Analysis of fluctuation spectrum in background B fields

Connection to near-horizon p-brane geometries

Abstract

We consider five-dimensional domain-wall solutions which arise from a sphere reduction in M-theory or string theory and have the higher-dimensional interpretation as the near-horizon region of p-branes in constant, background B fields. We analyze the fluctuation spectrum of linearized gravity and find that there is a massive state which is localized and plays the role of the four-dimensional graviton.