Speaker
Linus Wulff
Description
When the tree-level closed string effective action is reduced from D to D-d dimensions an O(d,d) symmetry appears. I will discuss how a certain necessary condition for this O(d,d) symmetry to be present can be used to determine the complete action at order alpha'^2 and all terms involving less than six fields at order alpha'^3 in the NSNS sector.
Author
Linus Wulff