Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2009-06-02
Phys.Rev.D81:046002,2010
Physics
High Energy Physics
High Energy Physics - Theory
39 pages. (v2) Typos corrected, 2 figures added, some points clarified, comments added. 41 pages
Scientific paper
10.1103/PhysRevD.81.046002
In this work we study the generalization of twisted homology to geometric and non-geometric backgrounds. In the process we describe the necessary conditions to wrap a network of D-branes on twisted cycles. If the cycle is localized in time, we show how by an instantonic brane mediation, some D-branes transform into fluxes on different backgrounds including non-geometric fluxes. As a consequence, we show that in the case of a IIB six-dimensional torus compactification on a simple orientifold, the flux superpotential is not invariant by this brane-flux transition, allowing the connection among different Minkowski vacuum solutions. For the case in which non-geometric fluxes are turned on, we also discuss some topological restrictions for the transition to occur. In this context, we show that there are some vacuum solutions protected to change by a brane-flux transition.
Herrera-Suarez Wilberth
Loaiza-Brito Oscar
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