Seminar series
Date
Mon, 09 Feb 2009
Time
12:00 -
13:00
Location
L3
Speaker
Jarah Evslin
Organisation
SISSA
We define an action of ordinary and Narain T-duality on an arbitrary torus bundle by applying Buscher and Narain's formulations patchwise. In general it changes the topology of the compactification manifold and its NS 3-form flux, for example in the case of a circle bundle it interchanges the Chern class with a pushforward of the flux. It nonetheless provides a candidate duality of the full string theory because it preserves several topological and geometric invariants such as the twisted K-theory in type II and the tadpole and supersymmetry conditions in non-Kahler heterotic compactifications.