Moduli spaces and D-brane categories of tori using SCFT

Details Moduli spaces and D-brane categories of tori using SCFT Moduli spaces and D-brane categories of tori using SCFT

2003-02-28

arxiv.org/abs/hep-th/0302226v1

Physics

High Energy Physics

High Energy Physics - Theory

1+38 pages, JHEP-style

Scientific paper

We analyse the moduli spaces of superconformal field theories (SCFTs). For N=2 we find an enhanced moduli space which in geometrical terms corresponds to tori with two independent complex structures. To explain the precise relation with the moduli space of SCFTs on K3 surfaces as described by Aspinwall and Morrison, we discuss some subtleties with the precise interpretation of the N=2 and N=4 moduli spaces. We also explain why in some cases the SYZ-description of mirror symmetry as fibrewise T-duality seems to break down. Using gluing matrices we give an algebraic description of D-branes and construct the corresponding boundary states. We study how isomorphisms of the SCFTs act on D-branes. Finally we give a geometrical interpretation of our algebraic constructions and make contact with the geometrical D-brane categories and Kontsevich's homological mirror symmetry conjecture.

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