A Unique Theory of Gravity and Matter

✍ Scribed by George Chapline

• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 232 KB
• Volume: 10
• Category: Article
• ISSN: 0960-0779
• DOI: 10.1016/s0960-0779(98)00166-0

✦ Synopsis

The author has previously suggested that the ground state for 3!dimensional quantum gravity can be represented as a condensation of non!linear gravitons connected by Dirac strings[ In this note we suggest that the low!lying excitations of this state can be described by a quasi!topological action of the form Ð d 02 z F 3 gF 4 gF 3 \ corresponding to a trilinear coupling of solitonic 7!branes and 6!branes[ It is shown that when the excitations associated with F 4 are neglected\ the e}ective action can be interpreted as a theory of conformal gravity in four dimensions[ This in turn suggests that ordinary gravity as well supersymmetric matter and phenomenological gauge symmetries arise from the spontaneous breaking of topological invariance[ The possibly deep mathematical signi_cance of this theory is also noted[