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Torsion D-Branes in Nongeometrical Phases | | Ilka Brunner
; Jacques Distler
; | | Date: |
5 Feb 2001 | | Journal: | Adv.Theor.Math.Phys. 5 (2002) 265-309 | | Subject: | High Energy Physics - Theory; K-Theory and Homology | hep-th math.KT | | Abstract: | In a geometrical background, D-brane charge is classified by topological K-theory. The corresponding classification of D-brane charge in an arbitrary, nongeometrical, compactification is still a mystery. We study D-branes on non-simply-connected Calabi-Yau 3-folds, with particular interest in the D-branes whose charges are torsion elements of the K-theory. We argue that we can follow the D-brane charge through the nongeometrical regions of the Kahler moduli space and, as evidence, explicitly construct torsion D-branes at the Gepner point in some examples. In one of our examples, the Gepner theory is a nonabelian orbifold of a tensor product of minimal models, and this somewhat exotic situation seems to be essential to the physics. | | Source: | arXiv, hep-th/0102018 | | Services: | Forum | Review | PDF | Favorites | |
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