Remarks on an Exact Seiberg-Witten map

We obtain the leading derivative corrections to an expression for the Seiberg-Witten map given by Banerjee and Yang and show how they affect the noncommutative deformation of the Maxwell action, as well as the matter coupling in noncommutative emergent gravity.Comment: 8 page

B fields from a Luddite perspective

In this talk we discuss the geometric realization of B fields and higher p-form potentials on a manifold M as connections on affine bundles over M. We realize D branes on M as special submanifolds of these affine bundles. As an application of this geometric understanding of the B field, we give a simple geometric explanation for the Chern-Simons modification of the field strength of the B field.Comment: 7 pages. From a talk given at the 3rd International Symposium on Quantum Theory and Symmetries (QTS3