Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2006-04-25
JHEP0710:057,2007
Physics
High Energy Physics
High Energy Physics - Theory
Minor corrections and additions
Scientific paper
10.1088/1126-6708/2007/10/057
The gauged sigma-model argument that string backgrounds related by T-dual give equivalent quantum theories is revisited, taking careful account of global considerations. The topological obstructions to gauging sigma-models give rise to obstructions to T-duality, but these are milder than those for gauging: it is possible to T-dualise a large class of sigma-models that cannot be gauged. For backgrounds that are torus fibrations, it is expected that T-duality can be applied fibrewise in the general case in which there are no globally-defined Killing vector fields, so that there is no isometry symmetry that can be gauged; the derivation of T-duality is extended to this case. The T-duality transformations are presented in terms of globally-defined quantities. The generalisation to non-geometric string backgrounds is discussed, the conditions for the T-dual background to be geometric found and the topology of T-folds analysed.
No associations
LandOfFree
Global Aspects of T-Duality, Gauged Sigma Models and T-Folds does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Global Aspects of T-Duality, Gauged Sigma Models and T-Folds, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Global Aspects of T-Duality, Gauged Sigma Models and T-Folds will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-433339