D-Branes on K3-Fibrations

Preprint

16 December 1999

preprint
Published by arXiv in arXiv

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 agreement with expectations. This provides a further test of the boundary CFT approach to $D$-brane physics.

Keywords

RAMOND CHARGES
K3 FIBRATIONS
YAU MANIFOLD
DIFFERENT K3
BRANES
CALABI
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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