K-theory in String Theory

Thursday, November 20, 2014 - 15:00 to 15:50
Thackeray 427
Speaker Information
Jarah Evslin
TPCSF, Beijing

Abstract or Additional Information

The fundamental objects of study in string theory are called D-branes.  Intuitively, these are submanifolds of the spacetime manifold with principle bundles fibered over them.  A one to one map has been conjectured between D-branes and elements of twisted K-theory.  I will explain this map, some of its applications and its shortcomings.