AdS-Maxwell Bf Theory As A Model Of Gravity And Bi-Gravity
arXiv:1212.6661
Abstract
This article presents an extended model of gravity obtained by gauging the AdS-Mawell algebra. It involves additional fields that shift the spin connection, leading effectively to theory of two independent connections. Extension of algebraic structure by another tetrad gives rise to the model described by a pair of Einstein equations.
3 pages. Based on a talk given at the 13th Marcel Grossmann Meeting