D-Branes on K3-Fibrations

Preprint

11 January 2000

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.hep-th/9912147

Abstract

B-type D-branes are constructed on two different K3-fibrations over IP_1 using boundary conformal field theory at the rational Gepner points of these models. The microscopic CFT charges are compared with the Ramond charges of D-branes wrapped on holomorphic cycles of the corresponding Calabi-Yau manifold. We study in particular D4-branes and bundles localized on the K3 fibers, and find from CFT that each irreducible component of a bundle on K3 gains one modulus upon fibration over IP_1. This is in agreement with expectations and so provides a further test of the boundary CFT.

Keywords

K3 FIBRATIONS
YAU MANIFOLD
DIFFERENT K3
IP_1 USING
CHARGES
BRANES
CFT

All Related Versions

Version 1, 1999-12-16, ArXiv
Version 2, 1999-12-21, ArXiv
Version 3, 2000-01-11, ArXiv
Published version: Nuclear Physics B, 582 (1-3), 203.

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